Action not permitted
Modal body text goes here.
Modal Title
Modal Body
CERTFR-2026-AVI-1390
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans Tenable Network Monitor. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une atteinte à la confidentialité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Tenable | Network Monitor | Network Monitor versions antérieures à 6.6.0 |
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Network Monitor versions ant\u00e9rieures \u00e0 6.6.0",
"product": {
"name": "Network Monitor",
"vendor": {
"name": "Tenable",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-56404",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56404"
},
{
"name": "CVE-2026-34180",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-34180"
},
{
"name": "CVE-2026-75806",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-75806"
},
{
"name": "CVE-2026-77696",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-77696"
},
{
"name": "CVE-2026-42766",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-42766"
},
{
"name": "CVE-2026-1965",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-1965"
},
{
"name": "CVE-2026-34181",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-34181"
},
{
"name": "CVE-2026-35189",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-35189"
},
{
"name": "CVE-2026-8926",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8926"
},
{
"name": "CVE-2026-84784",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-84784"
},
{
"name": "CVE-2026-11352",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-11352"
},
{
"name": "CVE-2026-3783",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3783"
},
{
"name": "CVE-2026-63074",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-63074"
},
{
"name": "CVE-2026-8458",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8458"
},
{
"name": "CVE-2026-6429",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6429"
},
{
"name": "CVE-2026-86139",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86139"
},
{
"name": "CVE-2026-56131",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56131"
},
{
"name": "CVE-2026-66046",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-66046"
},
{
"name": "CVE-2026-86142",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86142"
},
{
"name": "CVE-2026-56410",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56410"
},
{
"name": "CVE-2026-9546",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-9546"
},
{
"name": "CVE-2026-63073",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-63073"
},
{
"name": "CVE-2026-14456",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-14456"
},
{
"name": "CVE-2026-14457",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-14457"
},
{
"name": "CVE-2026-8932",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8932"
},
{
"name": "CVE-2026-45186",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45186"
},
{
"name": "CVE-2026-56412",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56412"
},
{
"name": "CVE-2026-54875",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-54875"
},
{
"name": "CVE-2026-77214",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-77214"
},
{
"name": "CVE-2026-42772",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-42772"
},
{
"name": "CVE-2026-11586",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-11586"
},
{
"name": "CVE-2026-6253",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6253"
},
{
"name": "CVE-2026-7009",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7009"
},
{
"name": "CVE-2026-54873",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-54873"
},
{
"name": "CVE-2026-76641",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-76641"
},
{
"name": "CVE-2026-76781",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-76781"
},
{
"name": "CVE-2026-8924",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8924"
},
{
"name": "CVE-2026-3805",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3805"
},
{
"name": "CVE-2026-9079",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-9079"
},
{
"name": "CVE-2026-63075",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-63075"
},
{
"name": "CVE-2026-56407",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56407"
},
{
"name": "CVE-2026-86137",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86137"
},
{
"name": "CVE-2026-76956",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-76956"
},
{
"name": "CVE-2026-0990",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0990"
},
{
"name": "CVE-2026-9080",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-9080"
},
{
"name": "CVE-2026-56405",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56405"
},
{
"name": "CVE-2026-63076",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-63076"
},
{
"name": "CVE-2026-72897",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-72897"
},
{
"name": "CVE-2026-56411",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56411"
},
{
"name": "CVE-2026-9545",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-9545"
},
{
"name": "CVE-2026-18798",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-18798"
},
{
"name": "CVE-2026-34183",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-34183"
},
{
"name": "CVE-2026-56406",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56406"
},
{
"name": "CVE-2026-1757",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-1757"
},
{
"name": "CVE-2026-56408",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56408"
},
{
"name": "CVE-2026-86141",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86141"
},
{
"name": "CVE-2026-42767",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-42767"
},
{
"name": "CVE-2026-50219",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-50219"
},
{
"name": "CVE-2026-56403",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56403"
},
{
"name": "CVE-2026-4873",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4873"
},
{
"name": "CVE-2026-11979",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-11979"
},
{
"name": "CVE-2026-93990",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-93990"
},
{
"name": "CVE-2026-8925",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8925"
},
{
"name": "CVE-2026-56409",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56409"
},
{
"name": "CVE-2026-42764",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-42764"
},
{
"name": "CVE-2026-86144",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86144"
},
{
"name": "CVE-2026-75803",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-75803"
},
{
"name": "CVE-2026-54872",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-54872"
},
{
"name": "CVE-2026-5773",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-5773"
},
{
"name": "CVE-2026-8927",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8927"
},
{
"name": "CVE-2026-6276",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6276"
},
{
"name": "CVE-2026-0992",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0992"
},
{
"name": "CVE-2026-75805",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-75805"
},
{
"name": "CVE-2026-102633",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-102633"
},
{
"name": "CVE-2026-11564",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-11564"
},
{
"name": "CVE-2026-34182",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-34182"
},
{
"name": "CVE-2026-86138",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86138"
},
{
"name": "CVE-2026-86140",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86140"
},
{
"name": "CVE-2026-74860",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-74860"
},
{
"name": "CVE-2026-35191",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-35191"
},
{
"name": "CVE-2026-9547",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-9547"
},
{
"name": "CVE-2026-56132",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-56132"
},
{
"name": "CVE-2026-54874",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-54874"
},
{
"name": "CVE-2026-7168",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7168"
},
{
"name": "CVE-2026-76957",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-76957"
},
{
"name": "CVE-2026-6732",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6732"
},
{
"name": "CVE-2026-75804",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-75804"
},
{
"name": "CVE-2026-86143",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86143"
},
{
"name": "CVE-2026-8286",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-8286"
},
{
"name": "CVE-2026-0989",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0989"
},
{
"name": "CVE-2026-63072",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-63072"
},
{
"name": "CVE-2026-5545",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-5545"
},
{
"name": "CVE-2026-3784",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3784"
}
],
"initial_release_date": "2026-10-27T00:00:00",
"last_revision_date": "2026-10-27T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1390",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-10-27T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Falsification de requ\u00eates c\u00f4t\u00e9 serveur (SSRF)"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Tenable Network Monitor. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, un d\u00e9ni de service \u00e0 distance et une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Tenable Network Monitor",
"vendor_advisories": [
{
"published_at": "2026-10-26",
"title": "Bulletin de s\u00e9curit\u00e9 Tenable tns-2026-32",
"url": "https://www.tenable.com/security/tns-2026-32"
}
]
}
CVE-2026-0989 (GCVE-0-2026-0989)
Vulnerability from cvelistv5
Published
2026-01-15 14:20
Modified
2026-09-01 12:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-674 - Uncontrolled Recursion
Summary
A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are handled. The parser does not enforce a limit on inclusion depth when resolving nested <include> directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This may lead to stack exhaustion and application crashes, creating a denial-of-service risk.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Hardened Images |
Unaffected: 2.15.2-0.3.hum1 < * cpe:/a:redhat:hummingbird:1 |
||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-0989",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-15T16:31:12.583434Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-01-15T16:39:34.311Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "libxml2-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2.15.2-0.3.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_core_services:1"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat JBoss Core Services",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank lanbigking for reporting this issue."
}
],
"datePublic": "2026-01-15T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are handled. The parser does not enforce a limit on inclusion depth when resolving nested \u003cinclude\u003e directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This may lead to stack exhaustion and application crashes, creating a denial-of-service risk."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Low"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-674",
"description": "Uncontrolled Recursion",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-01T12:10:22.136Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:7519",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7519"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-0989"
},
{
"name": "RHBZ#2429933",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2429933"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/998"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-01-15T12:36:12.129Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-01-15T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Libxml2: unbounded relaxng include recursion leading to stack overflow",
"workarounds": [
{
"lang": "en",
"value": "To mitigate this issue, restrict applications using libxml2 from processing untrusted RelaxNG schema files. Implement strict input validation and sanitization for all RelaxNG schema inputs to prevent the parsing of maliciously crafted, deeply nested include directives."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-674: Uncontrolled Recursion"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-0989",
"datePublished": "2026-01-15T14:20:23.274Z",
"dateReserved": "2026-01-15T12:38:51.419Z",
"dateUpdated": "2026-09-01T12:10:22.136Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-11564 (GCVE-0-2026-11564)
Vulnerability from cvelistv5
Published
2026-07-03 06:12
Modified
2026-09-15 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-295 - Improper Certificate Validation
Summary
libcurl keeps previously used connections in a connection pool for subsequent
transfers to reuse if one of them matches the setup.
An easy handle that first uses default native CA trust can continue trusting
the native platform store after the application switches that same handle to
custom CA material for a later transfer.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-11564",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T17:09:36.356822Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T17:10:33.352Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3788984"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "d69bfad3fa3daf5e72331f6870667607828d5891",
"status": "affected",
"version": "eefd03c572996e5de4dec4fe295ad6f103e0eefc",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Filipe Casal of Trail of Bits in collaboration with OpenAI"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Stefan Eissing"
}
],
"descriptions": [
{
"lang": "en",
"value": "libcurl keeps previously used connections in a connection pool for subsequent\ntransfers to reuse if one of them matches the setup.\n\nAn easy handle that first uses default native CA trust can continue trusting\nthe native platform store after the application switches that same handle to\ncustom CA material for a later transfer."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-295",
"description": "Improper Certificate Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:39.718Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-11564.json"
},
{
"url": "https://curl.se/docs/CVE-2026-11564.html"
},
{
"url": "https://hackerone.com/reports/3788984"
}
],
"title": "Native CA trust persist",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "eefd03c572996e5de4dec4fe295ad6f103e0eefc"
},
{
"fixed": "d69bfad3fa3daf5e72331f6870667607828d5891"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0"
]
}
],
"aliases": [
"CVE-2026-11564"
],
"credits": [
{
"name": "Filipe Casal of Trail of Bits in collaboration with OpenAI",
"type": "finder"
},
{
"name": "Stefan Eissing",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Improper Certificate Validation",
"id": "CWE-295"
},
"URL": "https://curl.se/docs/CVE-2026-11564.json",
"affects": "lib",
"issue": "https://hackerone.com/reports/3788984",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-11564.html"
},
"details": "libcurl keeps previously used connections in a connection pool for subsequent\ntransfers to reuse if one of them matches the setup.\n\nAn easy handle that first uses default native CA trust can continue trusting\nthe native platform store after the application switches that same handle to\ncustom CA material for a later transfer.",
"id": "CURL-CVE-2026-11564",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "Native CA trust persist"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-11564",
"datePublished": "2026-07-03T06:12:35.251Z",
"dateReserved": "2026-06-08T08:22:50.089Z",
"dateUpdated": "2026-09-15T06:02:39.718Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5773 (GCVE-0-2026-5773)
Vulnerability from cvelistv5
Published
2026-05-13 08:27
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-488 - Exposure of Data Element to Wrong Session
Summary
libcurl might in some circumstances reuse the wrong connection for SMB(S)
transfers.
libcurl features a pool of recent connections so that subsequent requests can
reuse an existing connection to avoid overhead.
When reusing a connection a range of criteria must be met. Due to a logical
error in the code, a network transfer operation that was requested by an
application could wrongfully reuse an existing SMB connection to the same
server that was using a different "share" than the new subsequent transfer
should.
This could in unlucky situations lead to the download of the wrong file or the
upload of a file to the wrong place. When this happens, the same credentials
are used and the server name is the same.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.40.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-05-13T09:05:23.608Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/04/29/9"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-5773",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T17:45:00.901945Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T17:45:08.173Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3650689"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.40.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "74a169575d6412dc0ff532acdf94de35a6c2a571",
"status": "affected",
"version": "aec2e865f06669b9cb5d26cc1148d70bc418b163",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Osama Hamad"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "libcurl might in some circumstances reuse the wrong connection for SMB(S)\ntransfers.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a network transfer operation that was requested by an\napplication could wrongfully reuse an existing SMB connection to the same\nserver that was using a different \"share\" than the new subsequent transfer\nshould.\n\nThis could in unlucky situations lead to the download of the wrong file or the\nupload of a file to the wrong place. When this happens, the same credentials\nare used and the server name is the same."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-488",
"description": "Exposure of Data Element to Wrong Session",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:00.894Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-5773.json"
},
{
"url": "https://curl.se/docs/CVE-2026-5773.html"
},
{
"url": "https://hackerone.com/reports/3650689"
}
],
"title": "wrong reuse of SMB connection",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.40.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "aec2e865f06669b9cb5d26cc1148d70bc418b163"
},
{
"fixed": "74a169575d6412dc0ff532acdf94de35a6c2a571"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0"
]
}
],
"aliases": [
"CVE-2026-5773"
],
"credits": [
{
"name": "Osama Hamad",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Exposure of Data Element to Wrong Session",
"id": "CWE-488"
},
"URL": "https://curl.se/docs/CVE-2026-5773.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3650689",
"last_affected": "8.19.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-5773.html"
},
"details": "libcurl might in some circumstances reuse the wrong connection for SMB(S)\ntransfers.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a network transfer operation that was requested by an\napplication could wrongfully reuse an existing SMB connection to the same\nserver that was using a different \"share\" than the new subsequent transfer\nshould.\n\nThis could in unlucky situations lead to the download of the wrong file or the\nupload of a file to the wrong place. When this happens, the same credentials\nare used and the server name is the same.",
"id": "CURL-CVE-2026-5773",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-04-29T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "wrong reuse of SMB connection"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-5773",
"datePublished": "2026-05-13T08:27:42.342Z",
"dateReserved": "2026-04-08T06:51:05.356Z",
"dateUpdated": "2026-09-15T06:03:00.894Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-63075 (GCVE-0-2026-63075)
Vulnerability from cvelistv5
Published
2026-08-25 13:00
Modified
2026-08-25 14:36
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly
sends ack-eliciting packets while not acknowledging ACK-only responses, the
QUIC stack can retain ACK-only packet metadata for the lifetime of the
connection.
Impact summary: A remote peer that can complete a QUIC handshake can
cause connection-scoped memory growth which may lead to Denial of Service
through memory exhaustion, especially with sustained traffic or many concurrent
QUIC connections.
CWE: CWE-770: Allocation of Resources Without Limits or Throttling
Description: When the OpenSSL QUIC stack sends an ACK-only packet,
there is no requirement by the QUIC protocol that the peer will acknowledge
that ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL
implementation stores the metadata about the ACK frames regardless.
In and of itself that's ok, but if a malicious peer establishes a connection, and
then drives the connection such that ACK-only packets are forced from the
OpenSSL implementation peer (i.e., by sending numerous PING frames),
and then withholding any subsequent acks for ack-eliciting data, like
legitimate data, said malicious peer can force inappropriate memory growth
on the OpenSSL peer, potentially leading to a Denial of Service.
The fix is to ensure that we account for the transmission of the ACK-only
packet in the packet histories high and low watermark without actually storing
the ACK-only packet metadata itself.
FIPS impact: no
The OpenSSL FIPS module is not affected as the QUIC code is
outside the FIPS module boundary.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-63075",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T14:36:48.832724Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T14:36:51.928Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.2",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.4",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.8",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.7",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Opal Wright (Trail of Bits)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Neil Horman"
}
],
"datePublic": "2026-08-25T11:36:16.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly\u003cbr\u003esends ack-eliciting packets while not acknowledging ACK-only responses, the\u003cbr\u003eQUIC stack can retain ACK-only packet metadata for the lifetime of the\u003cbr\u003econnection.\u003cbr\u003e\u003cbr\u003eImpact summary: A remote peer that can complete a QUIC handshake can\u003cbr\u003ecause connection-scoped memory growth which may lead to Denial of Service\u003cbr\u003ethrough memory exhaustion, especially with sustained traffic or many concurrent\u003cbr\u003eQUIC connections.\u003cbr\u003e\u003cbr\u003eCWE: CWE-770: Allocation of Resources Without Limits or Throttling\u003cbr\u003e\u003cbr\u003eDescription: When the OpenSSL QUIC stack sends an ACK-only packet,\u003cbr\u003ethere is no requirement by the QUIC protocol that the peer will acknowledge\u003cbr\u003ethat ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL\u003cbr\u003eimplementation stores the metadata about the ACK frames regardless.\u003cbr\u003eIn and of itself that\u0027s ok, but if a malicious peer establishes a connection, and\u003cbr\u003ethen drives the connection such that ACK-only packets are forced from the \u003cbr\u003eOpenSSL implementation peer (i.e., by sending numerous PING frames),\u003cbr\u003eand then withholding any subsequent acks for ack-eliciting data, like\u003cbr\u003elegitimate data, said malicious peer can force inappropriate memory growth\u003cbr\u003eon the OpenSSL peer, potentially leading to a Denial of Service.\u003cbr\u003e\u003cbr\u003eThe fix is to ensure that we account for the transmission of the ACK-only\u003cbr\u003epacket in the packet histories high and low watermark without actually storing\u003cbr\u003ethe ACK-only packet metadata itself.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eThe OpenSSL FIPS module is not affected as the QUIC code is\u003cbr\u003eoutside the FIPS module boundary."
}
],
"value": "Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly\nsends ack-eliciting packets while not acknowledging ACK-only responses, the\nQUIC stack can retain ACK-only packet metadata for the lifetime of the\nconnection.\n\nImpact summary: A remote peer that can complete a QUIC handshake can\ncause connection-scoped memory growth which may lead to Denial of Service\nthrough memory exhaustion, especially with sustained traffic or many concurrent\nQUIC connections.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: When the OpenSSL QUIC stack sends an ACK-only packet,\nthere is no requirement by the QUIC protocol that the peer will acknowledge\nthat ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL\nimplementation stores the metadata about the ACK frames regardless.\nIn and of itself that\u0027s ok, but if a malicious peer establishes a connection, and\nthen drives the connection such that ACK-only packets are forced from the \nOpenSSL implementation peer (i.e., by sending numerous PING frames),\nand then withholding any subsequent acks for ack-eliciting data, like\nlegitimate data, said malicious peer can force inappropriate memory growth\non the OpenSSL peer, potentially leading to a Denial of Service.\n\nThe fix is to ensure that we account for the transmission of the ACK-only\npacket in the packet histories high and low watermark without actually storing\nthe ACK-only packet metadata itself.\n\nFIPS impact: no\nThe OpenSSL FIPS module is not affected as the QUIC code is\noutside the FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T13:00:04.752Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260825.txt"
},
{
"name": "4.0.2 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/7308946576b12e64b8be53bcf0a120354b2b42bc"
},
{
"name": "3.6.4 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/bf84721c2548351176e367e6de505792f0118dc6"
},
{
"name": "3.5.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/7c98d79738549df92868e7dd9be4bbf061eed709"
},
{
"name": "3.4.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/c902e5f16d6a9e130e96d3ca6d8f64d71652e393"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "QUIC ACK-only Packet Retention Can Cause Memory Exhaustion",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-63075",
"datePublished": "2026-08-25T13:00:04.752Z",
"dateReserved": "2026-07-15T13:10:26.188Z",
"dateUpdated": "2026-08-25T14:36:51.928Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-8927 (GCVE-0-2026-8927)
Vulnerability from cvelistv5
Published
2026-07-03 06:16
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-294 - Authentication Bypass by Capture-replay
Summary
When reusing a libcurl handle for sequential transfers driven by
environment-variable proxy configuration, libcurl fails to clear the proxy
authentication state between requests. Specifically, if the initial transfer
authenticates against `proxyA` using Digest auth, a subsequent transfer routed
through `proxyB` erroneously leaks the `Proxy-Authorization:` header intended
solely for `proxyA`.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.12.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-8927",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T17:00:13.489405Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T17:01:06.213Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3744543"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.12.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "5c225384b8d52c67ce8259c6e4203bc57aacb567",
"status": "affected",
"version": "fc6eff13b5414caf6edf22d73a3239e074a04216",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
},
{
"status": "affected",
"version": "7.32.0"
},
{
"status": "affected",
"version": "7.31.0"
},
{
"status": "affected",
"version": "7.30.0"
},
{
"status": "affected",
"version": "7.29.0"
},
{
"status": "affected",
"version": "7.28.1"
},
{
"status": "affected",
"version": "7.28.0"
},
{
"status": "affected",
"version": "7.27.0"
},
{
"status": "affected",
"version": "7.26.0"
},
{
"status": "affected",
"version": "7.25.0"
},
{
"status": "affected",
"version": "7.24.0"
},
{
"status": "affected",
"version": "7.23.1"
},
{
"status": "affected",
"version": "7.23.0"
},
{
"status": "affected",
"version": "7.22.0"
},
{
"status": "affected",
"version": "7.21.7"
},
{
"status": "affected",
"version": "7.21.6"
},
{
"status": "affected",
"version": "7.21.5"
},
{
"status": "affected",
"version": "7.21.4"
},
{
"status": "affected",
"version": "7.21.3"
},
{
"status": "affected",
"version": "7.21.2"
},
{
"status": "affected",
"version": "7.21.1"
},
{
"status": "affected",
"version": "7.21.0"
},
{
"status": "affected",
"version": "7.20.1"
},
{
"status": "affected",
"version": "7.20.0"
},
{
"status": "affected",
"version": "7.19.7"
},
{
"status": "affected",
"version": "7.19.6"
},
{
"status": "affected",
"version": "7.19.5"
},
{
"status": "affected",
"version": "7.19.4"
},
{
"status": "affected",
"version": "7.19.3"
},
{
"status": "affected",
"version": "7.19.2"
},
{
"status": "affected",
"version": "7.19.1"
},
{
"status": "affected",
"version": "7.19.0"
},
{
"status": "affected",
"version": "7.18.2"
},
{
"status": "affected",
"version": "7.18.1"
},
{
"status": "affected",
"version": "7.18.0"
},
{
"status": "affected",
"version": "7.17.1"
},
{
"status": "affected",
"version": "7.17.0"
},
{
"status": "affected",
"version": "7.16.4"
},
{
"status": "affected",
"version": "7.16.3"
},
{
"status": "affected",
"version": "7.16.2"
},
{
"status": "affected",
"version": "7.16.1"
},
{
"status": "affected",
"version": "7.16.0"
},
{
"status": "affected",
"version": "7.15.5"
},
{
"status": "affected",
"version": "7.15.4"
},
{
"status": "affected",
"version": "7.15.3"
},
{
"status": "affected",
"version": "7.15.2"
},
{
"status": "affected",
"version": "7.15.1"
},
{
"status": "affected",
"version": "7.15.0"
},
{
"status": "affected",
"version": "7.14.1"
},
{
"status": "affected",
"version": "7.14.0"
},
{
"status": "affected",
"version": "7.13.2"
},
{
"status": "affected",
"version": "7.13.1"
},
{
"status": "affected",
"version": "7.13.0"
},
{
"status": "affected",
"version": "7.12.3"
},
{
"status": "affected",
"version": "7.12.2"
},
{
"status": "affected",
"version": "7.12.1"
},
{
"status": "affected",
"version": "7.12.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Ady Elouej"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "When reusing a libcurl handle for sequential transfers driven by\nenvironment-variable proxy configuration, libcurl fails to clear the proxy\nauthentication state between requests. Specifically, if the initial transfer\nauthenticates against `proxyA` using Digest auth, a subsequent transfer routed\nthrough `proxyB` erroneously leaks the `Proxy-Authorization:` header intended\nsolely for `proxyA`."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-294",
"description": "Authentication Bypass by Capture-replay",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:25.335Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-8927.json"
},
{
"url": "https://curl.se/docs/CVE-2026-8927.html"
},
{
"url": "https://hackerone.com/reports/3744543"
}
],
"title": "env-set cross-proxy Digest auth state leak",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.12.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "fc6eff13b5414caf6edf22d73a3239e074a04216"
},
{
"fixed": "5c225384b8d52c67ce8259c6e4203bc57aacb567"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0",
"7.32.0",
"7.31.0",
"7.30.0",
"7.29.0",
"7.28.1",
"7.28.0",
"7.27.0",
"7.26.0",
"7.25.0",
"7.24.0",
"7.23.1",
"7.23.0",
"7.22.0",
"7.21.7",
"7.21.6",
"7.21.5",
"7.21.4",
"7.21.3",
"7.21.2",
"7.21.1",
"7.21.0",
"7.20.1",
"7.20.0",
"7.19.7",
"7.19.6",
"7.19.5",
"7.19.4",
"7.19.3",
"7.19.2",
"7.19.1",
"7.19.0",
"7.18.2",
"7.18.1",
"7.18.0",
"7.17.1",
"7.17.0",
"7.16.4",
"7.16.3",
"7.16.2",
"7.16.1",
"7.16.0",
"7.15.5",
"7.15.4",
"7.15.3",
"7.15.2",
"7.15.1",
"7.15.0",
"7.14.1",
"7.14.0",
"7.13.2",
"7.13.1",
"7.13.0",
"7.12.3",
"7.12.2",
"7.12.1",
"7.12.0"
]
}
],
"aliases": [
"CVE-2026-8927"
],
"credits": [
{
"name": "Ady Elouej",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Authentication Bypass by Capture-replay",
"id": "CWE-294"
},
"URL": "https://curl.se/docs/CVE-2026-8927.json",
"affects": "lib",
"issue": "https://hackerone.com/reports/3744543",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Medium",
"www": "https://curl.se/docs/CVE-2026-8927.html"
},
"details": "When reusing a libcurl handle for sequential transfers driven by\nenvironment-variable proxy configuration, libcurl fails to clear the proxy\nauthentication state between requests. Specifically, if the initial transfer\nauthenticates against `proxyA` using Digest auth, a subsequent transfer routed\nthrough `proxyB` erroneously leaks the `Proxy-Authorization:` header intended\nsolely for `proxyA`.",
"id": "CURL-CVE-2026-8927",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "env-set cross-proxy Digest auth state leak"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-8927",
"datePublished": "2026-07-03T06:16:06.376Z",
"dateReserved": "2026-05-19T08:12:08.842Z",
"dateUpdated": "2026-09-15T06:03:25.335Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42772 (GCVE-0-2026-42772)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-30 20:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Summary
Issue summary: The QUIC stream reassembly algorithm performance deteriorates
progressively as packets are arriving out of order. The worst case has
a quadratic complexity proportional to the number of stream frames kept in
the buffer for the received stream data.
Impact summary: A remote QUIC peer that completes the handshake can create
a connection-scoped CPU pressure and potentially a Denial of Service using
compliant STREAM frames inside the advertised receive window, with low
attacker bandwidth.
CWE: CWE-407: Inefficient Algorithmic Complexity
Description: OpenSSL manages received QUIC stream fragments using a
doubly-linked list. While it optimizes for append operations (at the end of
the list), it falls back to a head-to-tail linear search for any fragment
that does not immediately follow the current `tail`.
By manipulating the sequence of offsets, an attacker can force the server
to perform O(n^2) operations, consuming excessive CPU time for the
QUIC process.
FIPS impact: no
The FIPS module is not affected as the QUIC implementation is outside of
the OpenSSL FIPS module boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-42772",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-30T19:35:54.157005Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T20:11:09.295Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Saku0512"
},
{
"lang": "en",
"type": "reporter",
"value": "Opal Wright (Trail of Bits)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Alexandr Nedvedicky"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: The QUIC stream reassembly algorithm performance deteriorates\u003cbr\u003eprogressively as packets are arriving out of order. The worst case has\u003cbr\u003ea quadratic complexity proportional to the number of stream frames kept in\u003cbr\u003ethe buffer for the received stream data.\u003cbr\u003e\u003cbr\u003eImpact summary: A remote QUIC peer that completes the handshake can create\u003cbr\u003ea connection-scoped CPU pressure and potentially a Denial of Service using\u003cbr\u003ecompliant STREAM frames inside the advertised receive window, with low\u003cbr\u003eattacker bandwidth.\u003cbr\u003e\u003cbr\u003eCWE: CWE-407: Inefficient Algorithmic Complexity\u003cbr\u003e\u003cbr\u003eDescription: OpenSSL manages received QUIC stream fragments using a\u003cbr\u003edoubly-linked list. While it optimizes for append operations (at the end of\u003cbr\u003ethe list), it falls back to a head-to-tail linear search for any fragment\u003cbr\u003ethat does not immediately follow the current `tail`.\u003cbr\u003e\u003cbr\u003eBy manipulating the sequence of offsets, an attacker can force the server\u003cbr\u003eto perform O(n^2) operations, consuming excessive CPU time for the\u003cbr\u003eQUIC process.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eThe FIPS module is not affected as the QUIC implementation is outside of\u003cbr\u003ethe OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: The QUIC stream reassembly algorithm performance deteriorates\nprogressively as packets are arriving out of order. The worst case has\na quadratic complexity proportional to the number of stream frames kept in\nthe buffer for the received stream data.\n\nImpact summary: A remote QUIC peer that completes the handshake can create\na connection-scoped CPU pressure and potentially a Denial of Service using\ncompliant STREAM frames inside the advertised receive window, with low\nattacker bandwidth.\n\nCWE: CWE-407: Inefficient Algorithmic Complexity\n\nDescription: OpenSSL manages received QUIC stream fragments using a\ndoubly-linked list. While it optimizes for append operations (at the end of\nthe list), it falls back to a head-to-tail linear search for any fragment\nthat does not immediately follow the current `tail`.\n\nBy manipulating the sequence of offsets, an attacker can force the server\nto perform O(n^2) operations, consuming excessive CPU time for the\nQUIC process.\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-407",
"description": "CWE-407 Inefficient Algorithmic Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:14.009Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/f42ae513bbda513b3c121d54834040ee4a0eae1a"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/32d0ed8afe1b8c3e7ece725b44663da3d7087a09"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/ca8402e273af4de5b3f04fa61a0f0c02ce3ae20e"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/eb2becc0a4baea7f3050a247834d0e5c2ebe1773"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Potential CPU DoS via O(n^2) Fragment Reassembly in QUIC",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-42772",
"datePublished": "2026-09-29T15:32:14.009Z",
"dateReserved": "2026-04-29T09:22:27.969Z",
"dateUpdated": "2026-09-30T20:11:09.295Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54872 (GCVE-0-2026-54872)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-29 17:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-208 - Observable Timing Discrepancy
Summary
Issue summary: The generic elliptic-curve scalar multiplication used for
ECDSA and SM2 signature operations with curves that do not have a dedicated
implementation leaks information about the secret nonce through timing.
Impact summary: An attacker able to measure signing times may learn
information about the per-signature secret nonce, which over many signatures
can, via a lattice / Hidden Number Problem attack, lead to recovery of the
private key.
CWE: CWE-208: Observable Timing Discrepancy
Description: The generic elliptic-curve scalar multiplication used for
curves that do not have a dedicated constant-time implementation pads the
secret scalar with non-constant-time BIGNUM operations, so the time taken
depends on the value of the secret scalar derived from the ECDSA and SM2 nonce.
The leak is very small; observing it requires a large number of
measurements. The effect is largest for curves whose group order lies
on a machine-word boundary, such as brainpoolP384r1.
Applications using ECDSA signing over the Brainpool and other generic prime
curves, and SM2 signing on platforms that use the generic implementation,
are vulnerable to this issue.
The NIST curves P-256, P-384 and P-521 use dedicated constant-time
implementations and are not affected.
FIPS Impact: no
The FIPS modules are not affected: the approved NIST curves used in the FIPS
provider have dedicated constant-time implementations and do not use the
affected code path.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-54872",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T17:27:46.959054Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T17:28:12.657Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.23",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
},
{
"lessThan": "1.1.1zj",
"status": "affected",
"version": "1.1.1",
"versionType": "custom"
},
{
"lessThan": "1.0.2zs",
"status": "affected",
"version": "1.0.2",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "remediation developer",
"value": "Igor Ustinov"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: The generic elliptic-curve scalar multiplication used for\u003cbr\u003eECDSA and SM2 signature operations with curves that do not have a dedicated\u003cbr\u003eimplementation leaks information about the secret nonce through timing.\u003cbr\u003e\u003cbr\u003eImpact summary: An attacker able to measure signing times may learn\u003cbr\u003einformation about the per-signature secret nonce, which over many signatures\u003cbr\u003ecan, via a lattice / Hidden Number Problem attack, lead to recovery of the\u003cbr\u003eprivate key.\u003cbr\u003e\u003cbr\u003eCWE: CWE-208: Observable Timing Discrepancy\u003cbr\u003e\u003cbr\u003eDescription: The generic elliptic-curve scalar multiplication used for\u003cbr\u003ecurves that do not have a dedicated constant-time implementation pads the\u003cbr\u003esecret scalar with non-constant-time BIGNUM operations, so the time taken\u003cbr\u003edepends on the value of the secret scalar derived from the ECDSA and SM2 nonce.\u003cbr\u003e\u003cbr\u003eThe leak is very small; observing it requires a large number of\u003cbr\u003emeasurements. The effect is largest for curves whose group order lies\u003cbr\u003eon a machine-word boundary, such as brainpoolP384r1.\u003cbr\u003e\u003cbr\u003eApplications using ECDSA signing over the Brainpool and other generic prime\u003cbr\u003ecurves, and SM2 signing on platforms that use the generic implementation,\u003cbr\u003eare vulnerable to this issue.\u003cbr\u003e\u003cbr\u003eThe NIST curves P-256, P-384 and P-521 use dedicated constant-time\u003cbr\u003eimplementations and are not affected.\u003cbr\u003e\u003cbr\u003eFIPS Impact: no\u003cbr\u003eThe FIPS modules are not affected: the approved NIST curves used in the FIPS\u003cbr\u003eprovider have dedicated constant-time implementations and do not use the\u003cbr\u003eaffected code path."
}
],
"value": "Issue summary: The generic elliptic-curve scalar multiplication used for\nECDSA and SM2 signature operations with curves that do not have a dedicated\nimplementation leaks information about the secret nonce through timing.\n\nImpact summary: An attacker able to measure signing times may learn\ninformation about the per-signature secret nonce, which over many signatures\ncan, via a lattice / Hidden Number Problem attack, lead to recovery of the\nprivate key.\n\nCWE: CWE-208: Observable Timing Discrepancy\n\nDescription: The generic elliptic-curve scalar multiplication used for\ncurves that do not have a dedicated constant-time implementation pads the\nsecret scalar with non-constant-time BIGNUM operations, so the time taken\ndepends on the value of the secret scalar derived from the ECDSA and SM2 nonce.\n\nThe leak is very small; observing it requires a large number of\nmeasurements. The effect is largest for curves whose group order lies\non a machine-word boundary, such as brainpoolP384r1.\n\nApplications using ECDSA signing over the Brainpool and other generic prime\ncurves, and SM2 signing on platforms that use the generic implementation,\nare vulnerable to this issue.\n\nThe NIST curves P-256, P-384 and P-521 use dedicated constant-time\nimplementations and are not affected.\n\nFIPS Impact: no\nThe FIPS modules are not affected: the approved NIST curves used in the FIPS\nprovider have dedicated constant-time implementations and do not use the\naffected code path."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "CWE-208 Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:15.075Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/8166827a78aad164a07aa86dea2b425403ced471"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/1a5bee8dc57430a2be69cd1ffe7fec6a62f4f179"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/3f7e1363dccec6f7732bb9e9fa471bb6e4aa68cb"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/7d83bc7764999dfd91b83b4f0815b45390422afd"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-54872",
"datePublished": "2026-09-29T15:32:15.075Z",
"dateReserved": "2026-06-16T10:18:08.635Z",
"dateUpdated": "2026-09-29T17:28:12.657Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-77696 (GCVE-0-2026-77696)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-29 16:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-208 - Observable Timing Discrepancy
Summary
Issue summary: SM2 signature generation uses non-constant-time arithmetic
on secret values, forming a timing side-channel.
Impact summary: An attacker able to measure SM2 signing times may learn
information about the per-signature secret nonce, which over many signatures
can, via a lattice / Hidden Number Problem attack, lead to recovery of the
private key.
CWE: CWE-208: Observable Timing Discrepancy
Description: SM2 signature generation computes the signature value using
variable-time BIGNUM operations on the secret nonce and the private key, so
the time taken to produce an SM2 signature depends on these secret values,
forming a timing side-channel.
Applications performing SM2 signature generation are affected on all
platforms.
FIPS Impact: no
SM2 is not a FIPS algorithm.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-77696",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T16:51:30.070097Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T16:51:33.618Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.23",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
},
{
"lessThan": "1.1.1zj",
"status": "affected",
"version": "1.1.1",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Vladimir Tokarev"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Igor Ustinov"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Viktor Dukhovni"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: SM2 signature generation uses non-constant-time arithmetic\u003cbr\u003eon secret values, forming a timing side-channel.\u003cbr\u003e\u003cbr\u003eImpact summary: An attacker able to measure SM2 signing times may learn\u003cbr\u003einformation about the per-signature secret nonce, which over many signatures\u003cbr\u003ecan, via a lattice / Hidden Number Problem attack, lead to recovery of the\u003cbr\u003eprivate key.\u003cbr\u003e\u003cbr\u003eCWE: CWE-208: Observable Timing Discrepancy\u003cbr\u003e\u003cbr\u003eDescription: SM2 signature generation computes the signature value using\u003cbr\u003evariable-time BIGNUM operations on the secret nonce and the private key, so\u003cbr\u003ethe time taken to produce an SM2 signature depends on these secret values,\u003cbr\u003eforming a timing side-channel.\u003cbr\u003e\u003cbr\u003eApplications performing SM2 signature generation are affected on all\u003cbr\u003eplatforms.\u003cbr\u003e\u003cbr\u003eFIPS Impact: no\u003cbr\u003eSM2 is not a FIPS algorithm."
}
],
"value": "Issue summary: SM2 signature generation uses non-constant-time arithmetic\non secret values, forming a timing side-channel.\n\nImpact summary: An attacker able to measure SM2 signing times may learn\ninformation about the per-signature secret nonce, which over many signatures\ncan, via a lattice / Hidden Number Problem attack, lead to recovery of the\nprivate key.\n\nCWE: CWE-208: Observable Timing Discrepancy\n\nDescription: SM2 signature generation computes the signature value using\nvariable-time BIGNUM operations on the secret nonce and the private key, so\nthe time taken to produce an SM2 signature depends on these secret values,\nforming a timing side-channel.\n\nApplications performing SM2 signature generation are affected on all\nplatforms.\n\nFIPS Impact: no\nSM2 is not a FIPS algorithm."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "CWE-208 Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:22.520Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/20b20628d39b2dcc4677194bd68c7c060fa598cb"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/1c4aed808a7aea32d2d013049c2e0d9fef164fc9"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/6b90445a56b99a328ac1feba058abf976504f440"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/419f5cb519721dceed393dbc524d79e487c72e64"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Timing Side-Channel in SM2 Signature Generation",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-77696",
"datePublished": "2026-09-29T15:32:22.520Z",
"dateReserved": "2026-08-21T07:47:36.032Z",
"dateUpdated": "2026-09-29T16:51:33.618Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-86143 (GCVE-0-2026-86143)
Vulnerability from cvelistv5
Published
2026-09-05 04:31
Modified
2026-09-08 18:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-192 - Integer Coercion Error
Summary
In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative lengths to reach write callbacks, aka a lack of a check for integer overflow before calling writecallback. This has security relevance for many types of uses of that length value within a callback.
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-86143",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-08T18:05:53.926972Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-08T18:06:25.507Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libxml2",
"vendor": "xmlsoft",
"versions": [
{
"lessThan": "2.15.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.15.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative lengths to reach write callbacks, aka a lack of a check for integer overflow before calling writecallback. This has security relevance for many types of uses of that length value within a callback."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-192",
"description": "CWE-192 Integer Coercion Error",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-05T04:31:21.187Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"
},
{
"url": "https://github.com/GNOME/libxml2/commit/90f293ba74d28b1d570920382e707586f68ebf35"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1111"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-86143",
"datePublished": "2026-09-05T04:31:21.187Z",
"dateReserved": "2026-09-05T04:31:20.849Z",
"dateUpdated": "2026-09-08T18:06:25.507Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-86141 (GCVE-0-2026-86141)
Vulnerability from cvelistv5
Published
2026-09-05 04:27
Modified
2026-09-09 19:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-252 - Unchecked Return Value
Summary
xmlregexp in libxml2 before 2.15.4 has a NULL pointer dereference in xmlRegNewParserCtxt after a strdup failure, i.e., it does not calculate a string length after NULL checking.
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-86141",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-09T19:15:44.918805Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-09T19:15:52.468Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libxml2",
"vendor": "xmlsoft",
"versions": [
{
"lessThan": "2.15.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.15.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "xmlregexp in libxml2 before 2.15.4 has a NULL pointer dereference in xmlRegNewParserCtxt after a strdup failure, i.e., it does not calculate a string length after NULL checking."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 2.9,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-252",
"description": "CWE-252 Unchecked Return Value",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-05T04:27:59.795Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"
},
{
"url": "https://github.com/GNOME/libxml2/commit/e89a8aae4c9b40cdafcf66b3f9e57c62db37bb55"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1107"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-86141",
"datePublished": "2026-09-05T04:27:59.795Z",
"dateReserved": "2026-09-05T04:27:58.625Z",
"dateUpdated": "2026-09-09T19:15:52.468Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56408 (GCVE-0-2026-56408)
Vulnerability from cvelistv5
Published
2026-06-21 15:51
Modified
2026-06-22 15:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
libexpat before 2.8.2 has an integer overflow in copyString.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56408",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T15:55:29.967243Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T15:55:42.752Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "libexpat before 2.8.2 has an integer overflow in copyString."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-21T15:51:11.303Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/commit/16e2efd867ea8567ffa012210b52ef5918e20817"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56408",
"datePublished": "2026-06-21T15:51:11.303Z",
"dateReserved": "2026-06-21T15:51:10.930Z",
"dateUpdated": "2026-06-22T15:55:42.752Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42766 (GCVE-0-2026-42766)
Vulnerability from cvelistv5
Published
2026-06-09 16:03
Modified
2026-06-10 07:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
Issue summary: A specially crafted password-encrypted CMS message
can trigger a NULL pointer dereference during CMS decryption.
Impact summary: This NULL pointer dereference leads to an application crash
and a Denial of Service.
The CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as
OPTIONAL in the ASN.1 specification and may therefore be absent in specially
crafted inputs. During the password-based CMS decryption the OpenSSL
CMS implementation dereferences this field without first checking whether it
was present.
An attacker who supplies such a CMS message to an application performing
password-based CMS decryption can trigger an application crash, leading to
a Denial of Service.
Applications that process password-encrypted CMS messages may be affected.
The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this
issue, as the affected code is outside the OpenSSL FIPS module boundary.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-42766",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-09T19:46:24.673332Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-09T19:46:27.585Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.1",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.3",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.7",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.6",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.21",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
},
{
"lessThan": "1.1.1zh",
"status": "affected",
"version": "1.1.1",
"versionType": "custom"
},
{
"lessThan": "1.0.2zq",
"status": "affected",
"version": "1.0.2",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Mayank Jangid"
},
{
"lang": "en",
"type": "reporter",
"value": "Kushal Khemka"
},
{
"lang": "en",
"type": "reporter",
"value": "Hari Priandana"
},
{
"lang": "en",
"type": "reporter",
"value": "Bhabani Sankar Das"
},
{
"lang": "en",
"type": "reporter",
"value": "Qifan Zhang (Palo Alto Networks)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Igor Ustinov"
}
],
"datePublic": "2026-06-09T14:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: A specially crafted password-encrypted CMS message\u003cbr\u003ecan trigger a NULL pointer dereference during CMS decryption.\u003cbr\u003e\u003cbr\u003eImpact summary: This NULL pointer dereference leads to an application crash\u003cbr\u003eand a Denial of Service.\u003cbr\u003e\u003cbr\u003eThe CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as\u003cbr\u003eOPTIONAL in the ASN.1 specification and may therefore be absent in specially\u003cbr\u003ecrafted inputs. During the password-based CMS decryption the OpenSSL\u003cbr\u003eCMS implementation dereferences this field without first checking whether it\u003cbr\u003ewas present.\u003cbr\u003e\u003cbr\u003eAn attacker who supplies such a CMS message to an application performing\u003cbr\u003epassword-based CMS decryption can trigger an application crash, leading to\u003cbr\u003ea Denial of Service.\u003cbr\u003e\u003cbr\u003eApplications that process password-encrypted CMS messages may be affected.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\u003cbr\u003eissue, as the affected code is outside the OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: A specially crafted password-encrypted CMS message\ncan trigger a NULL pointer dereference during CMS decryption.\n\nImpact summary: This NULL pointer dereference leads to an application crash\nand a Denial of Service.\n\nThe CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as\nOPTIONAL in the ASN.1 specification and may therefore be absent in specially\ncrafted inputs. During the password-based CMS decryption the OpenSSL\nCMS implementation dereferences this field without first checking whether it\nwas present.\n\nAn attacker who supplies such a CMS message to an application performing\npassword-based CMS decryption can trigger an application crash, leading to\na Denial of Service.\n\nApplications that process password-encrypted CMS messages may be affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T07:48:01.992Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260609.txt"
},
{
"name": "4.0.1 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/12bc26ffb3a2be728c9b86e1cae277de5b33dfa4"
},
{
"name": "3.6.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/da26f368732b83e40e9d356fe61c3d3aaab6d2e8"
},
{
"name": "3.5.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/056d06c1918fafbb98c1c85a02e4c47cc4e199ce"
},
{
"name": "3.4.6 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/ab52d88cb5374876d59aee3c91f9e4ccce2b7ce4"
},
{
"name": "3.0.21 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/3ff64913615d648cfbb6a6f1cf5529ae7ea829d7"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Possible NULL Dereference in Password-Based CMS Decryption",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-42766",
"datePublished": "2026-06-09T16:03:26.679Z",
"dateReserved": "2026-04-29T09:22:27.968Z",
"dateUpdated": "2026-06-10T07:48:01.992Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56131 (GCVE-0-2026-56131)
Vulnerability from cvelistv5
Published
2026-06-19 02:56
Modified
2026-06-22 14:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56131",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T14:58:05.598510Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T14:58:17.404Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation)."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-19T02:56:36.041Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1267"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56131",
"datePublished": "2026-06-19T02:56:36.041Z",
"dateReserved": "2026-06-19T02:56:35.597Z",
"dateUpdated": "2026-06-22T14:58:17.404Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-9079 (GCVE-0-2026-9079)
Vulnerability from cvelistv5
Published
2026-07-03 06:16
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-522 - Insufficiently Protected Credentials
Summary
libcurl had a flaw that when instructed to clear proxy authentication
credentials which made it not do so, leaving the old credentials around to get
used for subsequent transfers that should not know nor use them.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 8.8.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-9079",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T16:49:15.639683Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T16:49:56.248Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3750295"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "8.8.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "88c7e16cceec816a2df45c899d49b1e85513f193",
"status": "affected",
"version": "d5e83eb745762f48d8fafadc5df5dd3ae8d8941e",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Guannan Wang"
},
{
"lang": "en",
"type": "finder",
"value": "Zhanpeng Liu"
},
{
"lang": "en",
"type": "finder",
"value": "Jiashuo Liang"
},
{
"lang": "en",
"type": "finder",
"value": "Guancheng Li"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "libcurl had a flaw that when instructed to clear proxy authentication\ncredentials which made it not do so, leaving the old credentials around to get\nused for subsequent transfers that should not know nor use them."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-522",
"description": "Insufficiently Protected Credentials",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:28.741Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-9079.json"
},
{
"url": "https://curl.se/docs/CVE-2026-9079.html"
},
{
"url": "https://hackerone.com/reports/3750295"
}
],
"title": "stale proxy password leak",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "8.8.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "d5e83eb745762f48d8fafadc5df5dd3ae8d8941e"
},
{
"fixed": "88c7e16cceec816a2df45c899d49b1e85513f193"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0"
]
}
],
"aliases": [
"CVE-2026-9079"
],
"credits": [
{
"name": "Guannan Wang",
"type": "finder"
},
{
"name": "Zhanpeng Liu",
"type": "finder"
},
{
"name": "Jiashuo Liang",
"type": "finder"
},
{
"name": "Guancheng Li",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Insufficiently Protected Credentials",
"id": "CWE-522"
},
"URL": "https://curl.se/docs/CVE-2026-9079.json",
"affects": "lib",
"issue": "https://hackerone.com/reports/3750295",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Medium",
"www": "https://curl.se/docs/CVE-2026-9079.html"
},
"details": "libcurl had a flaw that when instructed to clear proxy authentication\ncredentials which made it not do so, leaving the old credentials around to get\nused for subsequent transfers that should not know nor use them.",
"id": "CURL-CVE-2026-9079",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "stale proxy password leak"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-9079",
"datePublished": "2026-07-03T06:16:51.127Z",
"dateReserved": "2026-05-20T12:59:41.444Z",
"dateUpdated": "2026-09-15T06:03:28.741Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56409 (GCVE-0-2026-56409)
Vulnerability from cvelistv5
Published
2026-06-21 15:52
Modified
2026-06-22 15:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56409",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T15:56:10.404976Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T15:56:24.103Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-21T15:52:59.663Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1259"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56409",
"datePublished": "2026-06-21T15:52:59.663Z",
"dateReserved": "2026-06-21T15:52:59.313Z",
"dateUpdated": "2026-06-22T15:56:24.103Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-7168 (GCVE-0-2026-7168)
Vulnerability from cvelistv5
Published
2026-05-13 08:29
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-294 - Authentication Bypass by Capture-replay
Summary
Successfully using libcurl to do a transfer over a specific HTTP proxy
(`proxyA`) with **Digest** authentication and then changing the proxy host to
a second one (`proxyB`) for a second transfer, reusing the same handle, makes
libcurl wrongly pass on the `Proxy-Authorization:` header field meant for
`proxyA`, to `proxyB`.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.12.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-05-13T09:05:54.907Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/04/29/14"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-7168",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T14:18:10.734219Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-23T16:12:24.400Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3697719"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.12.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "c1cfdf59acbaf9504c4578d4cf56cdd7c8594507",
"status": "affected",
"version": "fc6eff13b5414caf6edf22d73a3239e074a04216",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
},
{
"status": "affected",
"version": "7.32.0"
},
{
"status": "affected",
"version": "7.31.0"
},
{
"status": "affected",
"version": "7.30.0"
},
{
"status": "affected",
"version": "7.29.0"
},
{
"status": "affected",
"version": "7.28.1"
},
{
"status": "affected",
"version": "7.28.0"
},
{
"status": "affected",
"version": "7.27.0"
},
{
"status": "affected",
"version": "7.26.0"
},
{
"status": "affected",
"version": "7.25.0"
},
{
"status": "affected",
"version": "7.24.0"
},
{
"status": "affected",
"version": "7.23.1"
},
{
"status": "affected",
"version": "7.23.0"
},
{
"status": "affected",
"version": "7.22.0"
},
{
"status": "affected",
"version": "7.21.7"
},
{
"status": "affected",
"version": "7.21.6"
},
{
"status": "affected",
"version": "7.21.5"
},
{
"status": "affected",
"version": "7.21.4"
},
{
"status": "affected",
"version": "7.21.3"
},
{
"status": "affected",
"version": "7.21.2"
},
{
"status": "affected",
"version": "7.21.1"
},
{
"status": "affected",
"version": "7.21.0"
},
{
"status": "affected",
"version": "7.20.1"
},
{
"status": "affected",
"version": "7.20.0"
},
{
"status": "affected",
"version": "7.19.7"
},
{
"status": "affected",
"version": "7.19.6"
},
{
"status": "affected",
"version": "7.19.5"
},
{
"status": "affected",
"version": "7.19.4"
},
{
"status": "affected",
"version": "7.19.3"
},
{
"status": "affected",
"version": "7.19.2"
},
{
"status": "affected",
"version": "7.19.1"
},
{
"status": "affected",
"version": "7.19.0"
},
{
"status": "affected",
"version": "7.18.2"
},
{
"status": "affected",
"version": "7.18.1"
},
{
"status": "affected",
"version": "7.18.0"
},
{
"status": "affected",
"version": "7.17.1"
},
{
"status": "affected",
"version": "7.17.0"
},
{
"status": "affected",
"version": "7.16.4"
},
{
"status": "affected",
"version": "7.16.3"
},
{
"status": "affected",
"version": "7.16.2"
},
{
"status": "affected",
"version": "7.16.1"
},
{
"status": "affected",
"version": "7.16.0"
},
{
"status": "affected",
"version": "7.15.5"
},
{
"status": "affected",
"version": "7.15.4"
},
{
"status": "affected",
"version": "7.15.3"
},
{
"status": "affected",
"version": "7.15.2"
},
{
"status": "affected",
"version": "7.15.1"
},
{
"status": "affected",
"version": "7.15.0"
},
{
"status": "affected",
"version": "7.14.1"
},
{
"status": "affected",
"version": "7.14.0"
},
{
"status": "affected",
"version": "7.13.2"
},
{
"status": "affected",
"version": "7.13.1"
},
{
"status": "affected",
"version": "7.13.0"
},
{
"status": "affected",
"version": "7.12.3"
},
{
"status": "affected",
"version": "7.12.2"
},
{
"status": "affected",
"version": "7.12.1"
},
{
"status": "affected",
"version": "7.12.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Muhamad Arga Reksapati"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "Successfully using libcurl to do a transfer over a specific HTTP proxy\n(`proxyA`) with **Digest** authentication and then changing the proxy host to\na second one (`proxyB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Proxy-Authorization:` header field meant for\n`proxyA`, to `proxyB`."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-294",
"description": "Authentication Bypass by Capture-replay",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:07.424Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-7168.json"
},
{
"url": "https://curl.se/docs/CVE-2026-7168.html"
},
{
"url": "https://hackerone.com/reports/3697719"
}
],
"title": "cross-proxy Digest auth state leak",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.12.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "fc6eff13b5414caf6edf22d73a3239e074a04216"
},
{
"fixed": "c1cfdf59acbaf9504c4578d4cf56cdd7c8594507"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0",
"7.32.0",
"7.31.0",
"7.30.0",
"7.29.0",
"7.28.1",
"7.28.0",
"7.27.0",
"7.26.0",
"7.25.0",
"7.24.0",
"7.23.1",
"7.23.0",
"7.22.0",
"7.21.7",
"7.21.6",
"7.21.5",
"7.21.4",
"7.21.3",
"7.21.2",
"7.21.1",
"7.21.0",
"7.20.1",
"7.20.0",
"7.19.7",
"7.19.6",
"7.19.5",
"7.19.4",
"7.19.3",
"7.19.2",
"7.19.1",
"7.19.0",
"7.18.2",
"7.18.1",
"7.18.0",
"7.17.1",
"7.17.0",
"7.16.4",
"7.16.3",
"7.16.2",
"7.16.1",
"7.16.0",
"7.15.5",
"7.15.4",
"7.15.3",
"7.15.2",
"7.15.1",
"7.15.0",
"7.14.1",
"7.14.0",
"7.13.2",
"7.13.1",
"7.13.0",
"7.12.3",
"7.12.2",
"7.12.1",
"7.12.0"
]
}
],
"aliases": [
"CVE-2026-7168"
],
"credits": [
{
"name": "Muhamad Arga Reksapati",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Authentication Bypass by Capture-replay",
"id": "CWE-294"
},
"URL": "https://curl.se/docs/CVE-2026-7168.json",
"affects": "lib",
"issue": "https://hackerone.com/reports/3697719",
"last_affected": "8.19.0",
"package": "curl",
"severity": "Medium",
"www": "https://curl.se/docs/CVE-2026-7168.html"
},
"details": "Successfully using libcurl to do a transfer over a specific HTTP proxy\n(`proxyA`) with **Digest** authentication and then changing the proxy host to\na second one (`proxyB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Proxy-Authorization:` header field meant for\n`proxyA`, to `proxyB`.",
"id": "CURL-CVE-2026-7168",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-04-29T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "cross-proxy Digest auth state leak"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-7168",
"datePublished": "2026-05-13T08:29:08.900Z",
"dateReserved": "2026-04-27T07:37:37.172Z",
"dateUpdated": "2026-09-15T06:03:07.424Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-84784 (GCVE-0-2026-84784)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-29 16:44
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Issue summary: A malicious remote peer may flood the local QUIC
stack with NEW_CONNECTION_ID frames by avoiding a limit check on
how many connection IDs the remote QUIC stack can use.
Impact summary: The local QUIC stack sends a RETIRE_CONN_ID frame
for every NEW_CONNECTION_ID frame it receives. The RETIRE_CONN_ID
frame is dispatched via the Control Frame Queue (CFQ). If the remote
peer also withholds ACKs, then it can force the local stack
to allocate ~400MB (depending on ACK delay).
CWE: CWE-770: Allocation of Resources Without Limits or Throttling
Description: RFC 9000 sections 5.1.1 and 5.1.2 [1] describe the mechanism
by which a remote peer can notify the local QUIC stack to change the
destination connection ID (a.k.a. CID) the local stack uses to
identify the connection at the remote peer. Each CID is associated
with a sequence number. The sequence number is transmitted
in NEW_CONNECTION_ID and RETIRE_CONNECTION_ID frames to identify the CID
which is being either associated with a connection or retired.
The remote peer sends a NEW_CONNECTION_ID frame to let the local stack know
a new CID is being associated with an existing connection. The
NEW_CONNECTION_ID frame carries the new CID, its sequence number, and the
retire-prior-to number. The retire-prior-to identifies existing
CIDs that are to be retired. The local QUIC stack must send a
RETIRE_CONNECTION_ID for every destination CID whose sequence number
is less than retire-prior-to. The CID becomes retired after the
local stack receives an ACK for its RETIRE_CONNECTION_ID frame.
Although the OpenSSL QUIC stack supports at most one destination CID
for every connection, it can be tricked into processing more than
one RETIRE_CONNECTION_ID frame per connection. The OpenSSL QUIC
stack currently retires the destination CID as soon as it receives
the NEW_CONNECTION_ID, while in fact the destination CID must
be retired after an ACK for the RETIRE_CONNECTION_ID frame is received.
Correcting the flawed logic also fixes the backlog growth.
[1] https://datatracker.ietf.org/doc/html/rfc9000#name-issuing-connection-ids
FIPS impact: no
The FIPS module is not affected as the QUIC implementation is outside of
the OpenSSL FIPS module boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-84784",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T16:43:47.766260Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T16:44:09.766Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Bhabani Sankar Das"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Alexandr Nedvedicky"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: A malicious remote peer may flood the local QUIC\u003cbr\u003estack with NEW_CONNECTION_ID frames by avoiding a limit check on\u003cbr\u003ehow many connection IDs the remote QUIC stack can use.\u003cbr\u003e\u003cbr\u003eImpact summary: The local QUIC stack sends a RETIRE_CONN_ID frame\u003cbr\u003efor every NEW_CONNECTION_ID frame it receives. The RETIRE_CONN_ID\u003cbr\u003eframe is dispatched via the Control Frame Queue (CFQ). If the remote\u003cbr\u003epeer also withholds ACKs, then it can force the local stack\u003cbr\u003eto allocate ~400MB (depending on ACK delay).\u003cbr\u003e\u003cbr\u003eCWE: CWE-770: Allocation of Resources Without Limits or Throttling\u003cbr\u003e\u003cbr\u003eDescription: RFC 9000 sections 5.1.1 and 5.1.2 [1] describe the mechanism\u003cbr\u003eby which a remote peer can notify the local QUIC stack to change the\u003cbr\u003edestination connection ID (a.k.a. CID) the local stack uses to\u003cbr\u003eidentify the connection at the remote peer. Each CID is associated\u003cbr\u003ewith a sequence number. The sequence number is transmitted\u003cbr\u003ein NEW_CONNECTION_ID and RETIRE_CONNECTION_ID frames to identify the CID\u003cbr\u003ewhich is being either associated with a connection or retired.\u003cbr\u003e\u003cbr\u003eThe remote peer sends a NEW_CONNECTION_ID frame to let the local stack know\u003cbr\u003ea new CID is being associated with an existing connection. The\u003cbr\u003eNEW_CONNECTION_ID frame carries the new CID, its sequence number, and the\u003cbr\u003eretire-prior-to number. The retire-prior-to identifies existing\u003cbr\u003eCIDs that are to be retired. The local QUIC stack must send a\u003cbr\u003eRETIRE_CONNECTION_ID for every destination CID whose sequence number\u003cbr\u003eis less than retire-prior-to. The CID becomes retired after the\u003cbr\u003elocal stack receives an ACK for its RETIRE_CONNECTION_ID frame.\u003cbr\u003e\u003cbr\u003eAlthough the OpenSSL QUIC stack supports at most one destination CID\u003cbr\u003efor every connection, it can be tricked into processing more than\u003cbr\u003eone RETIRE_CONNECTION_ID frame per connection. The OpenSSL QUIC\u003cbr\u003estack currently retires the destination CID as soon as it receives\u003cbr\u003ethe NEW_CONNECTION_ID, while in fact the destination CID must\u003cbr\u003ebe retired after an ACK for the RETIRE_CONNECTION_ID frame is received.\u003cbr\u003eCorrecting the flawed logic also fixes the backlog growth.\u003cbr\u003e\u003cbr\u003e[1] https://datatracker.ietf.org/doc/html/rfc9000#name-issuing-connection-ids\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eThe FIPS module is not affected as the QUIC implementation is outside of\u003cbr\u003ethe OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: A malicious remote peer may flood the local QUIC\nstack with NEW_CONNECTION_ID frames by avoiding a limit check on\nhow many connection IDs the remote QUIC stack can use.\n\nImpact summary: The local QUIC stack sends a RETIRE_CONN_ID frame\nfor every NEW_CONNECTION_ID frame it receives. The RETIRE_CONN_ID\nframe is dispatched via the Control Frame Queue (CFQ). If the remote\npeer also withholds ACKs, then it can force the local stack\nto allocate ~400MB (depending on ACK delay).\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: RFC 9000 sections 5.1.1 and 5.1.2 [1] describe the mechanism\nby which a remote peer can notify the local QUIC stack to change the\ndestination connection ID (a.k.a. CID) the local stack uses to\nidentify the connection at the remote peer. Each CID is associated\nwith a sequence number. The sequence number is transmitted\nin NEW_CONNECTION_ID and RETIRE_CONNECTION_ID frames to identify the CID\nwhich is being either associated with a connection or retired.\n\nThe remote peer sends a NEW_CONNECTION_ID frame to let the local stack know\na new CID is being associated with an existing connection. The\nNEW_CONNECTION_ID frame carries the new CID, its sequence number, and the\nretire-prior-to number. The retire-prior-to identifies existing\nCIDs that are to be retired. The local QUIC stack must send a\nRETIRE_CONNECTION_ID for every destination CID whose sequence number\nis less than retire-prior-to. The CID becomes retired after the\nlocal stack receives an ACK for its RETIRE_CONNECTION_ID frame.\n\nAlthough the OpenSSL QUIC stack supports at most one destination CID\nfor every connection, it can be tricked into processing more than\none RETIRE_CONNECTION_ID frame per connection. The OpenSSL QUIC\nstack currently retires the destination CID as soon as it receives\nthe NEW_CONNECTION_ID, while in fact the destination CID must\nbe retired after an ACK for the RETIRE_CONNECTION_ID frame is received.\nCorrecting the flawed logic also fixes the backlog growth.\n\n[1] https://datatracker.ietf.org/doc/html/rfc9000#name-issuing-connection-ids\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:25.758Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/e9e5155833fa968bee50024bf9ca3a185ab599fe"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/4685c914b0d410b1034f40b547c95bc95e7a380a"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/dba3c48d653c64fcbc9070a17a0ee2b3e2f3af1f"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/9a30fe0fba195c14e5b87bf93c0d0fdb70373806"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "QUIC: Unbounded RETIRE_CONNECTION_ID Backlog",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-84784",
"datePublished": "2026-09-29T15:32:25.758Z",
"dateReserved": "2026-09-02T10:14:02.262Z",
"dateUpdated": "2026-09-29T16:44:09.766Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-86137 (GCVE-0-2026-86137)
Vulnerability from cvelistv5
Published
2026-09-05 04:19
Modified
2026-09-14 13:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-86137",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-14T13:26:45.455597Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-14T13:50:50.073Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libxml2",
"vendor": "xmlsoft",
"versions": [
{
"lessThan": "2.15.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.15.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 2.9,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "CWE-125 Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-05T04:19:30.745Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"
},
{
"url": "https://github.com/GNOME/libxml2/commit/76fe08d97de88bfaef2f7d5cd27f11954cc5bee2"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1099"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-86137",
"datePublished": "2026-09-05T04:19:30.745Z",
"dateReserved": "2026-09-05T04:19:30.345Z",
"dateUpdated": "2026-09-14T13:50:50.073Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-75804 (GCVE-0-2026-75804)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-29 17:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Issue summary: OpenSSL QUIC stack does not enforce connection
level flow control for streams. Remote peers may send more bytes
as long as they fit within the stream flow control limits.
Impact summary: A malicious remote peer may exploit the lack of connection
flow control for streams to make the QUIC stack receive ~100MB of memory
instead of 768 KiB (default flow control window size).
CWE: CWE-770: Allocation of Resources Without Limits or Throttling
Description: The local QUIC stack advertises two flow control limits
to its remote peer: stream flow control limit and connection flow
control limit. The remote peer must follow both limits when transmitting
stream data.
Whenever the local QUIC stack receives a stream frame, it validates
that the size of the received stream frame stays within flow control limits.
If either limit is exceeded (stream level or connection level), then
the QUIC stack must close the connection with a flow control error.
The vulnerable OpenSSL QUIC stack enforces the stream-level but not
the connection-level limit. To exploit the issue, three conditions must be met:
- the remote peer opens several streams
- each stream must stay within the stream-level flow control limit
- there must be no zero-offset byte sent on any of the streams
(to prevent the vulnerable QUIC stack from consuming data).
By meeting the conditions above, the remote peer may make the local stack
allocate 2 x MAX_STREAMS x (stream flow control limit) bytes
of memory. MAX_STREAMS defaults to 100, and the limit applies to both
bidirectional and unidirectional streams, making it 200 in total. The default
flow control window for a stream is 512kB. The remote peer may
force the vulnerable QUIC stack to allocate 100MB of heap per connection.
FIPS impact: no
The FIPS module is not affected as the QUIC implementation is outside of
the OpenSSL FIPS module boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-75804",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T17:15:09.218928Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T17:15:40.043Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Moltenbit"
},
{
"lang": "en",
"type": "reporter",
"value": "Bhabani Sankar Das"
},
{
"lang": "en",
"type": "reporter",
"value": "Saiyowa Security Team"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Alexandr Nedvedicky"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: OpenSSL QUIC stack does not enforce connection\u003cbr\u003elevel flow control for streams. Remote peers may send more bytes\u003cbr\u003eas long as they fit within the stream flow control limits.\u003cbr\u003e\u003cbr\u003eImpact summary: A malicious remote peer may exploit the lack of connection\u003cbr\u003eflow control for streams to make the QUIC stack receive ~100MB of memory\u003cbr\u003einstead of 768 KiB (default flow control window size).\u003cbr\u003e\u003cbr\u003eCWE: CWE-770: Allocation of Resources Without Limits or Throttling\u003cbr\u003e\u003cbr\u003eDescription: The local QUIC stack advertises two flow control limits\u003cbr\u003eto its remote peer: stream flow control limit and connection flow\u003cbr\u003econtrol limit. The remote peer must follow both limits when transmitting\u003cbr\u003estream data.\u003cbr\u003e\u003cbr\u003eWhenever the local QUIC stack receives a stream frame, it validates\u003cbr\u003ethat the size of the received stream frame stays within flow control limits.\u003cbr\u003eIf either limit is exceeded (stream level or connection level), then\u003cbr\u003ethe QUIC stack must close the connection with a flow control error.\u003cbr\u003e\u003cbr\u003eThe vulnerable OpenSSL QUIC stack enforces the stream-level but not\u003cbr\u003ethe connection-level limit. To exploit the issue, three conditions must be met:\u003cbr\u003e - the remote peer opens several streams\u003cbr\u003e - each stream must stay within the stream-level flow control limit\u003cbr\u003e - there must be no zero-offset byte sent on any of the streams\u003cbr\u003e (to prevent the vulnerable QUIC stack from consuming data).\u003cbr\u003eBy meeting the conditions above, the remote peer may make the local stack\u003cbr\u003eallocate 2 x MAX_STREAMS x (stream flow control limit) bytes\u003cbr\u003eof memory. MAX_STREAMS defaults to 100, and the limit applies to both\u003cbr\u003ebidirectional and unidirectional streams, making it 200 in total. The default\u003cbr\u003eflow control window for a stream is 512kB. The remote peer may\u003cbr\u003eforce the vulnerable QUIC stack to allocate 100MB of heap per connection.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eThe FIPS module is not affected as the QUIC implementation is outside of\u003cbr\u003ethe OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: OpenSSL QUIC stack does not enforce connection\nlevel flow control for streams. Remote peers may send more bytes\nas long as they fit within the stream flow control limits.\n\nImpact summary: A malicious remote peer may exploit the lack of connection\nflow control for streams to make the QUIC stack receive ~100MB of memory\ninstead of 768 KiB (default flow control window size).\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: The local QUIC stack advertises two flow control limits\nto its remote peer: stream flow control limit and connection flow\ncontrol limit. The remote peer must follow both limits when transmitting\nstream data.\n\nWhenever the local QUIC stack receives a stream frame, it validates\nthat the size of the received stream frame stays within flow control limits.\nIf either limit is exceeded (stream level or connection level), then\nthe QUIC stack must close the connection with a flow control error.\n\nThe vulnerable OpenSSL QUIC stack enforces the stream-level but not\nthe connection-level limit. To exploit the issue, three conditions must be met:\n - the remote peer opens several streams\n - each stream must stay within the stream-level flow control limit\n - there must be no zero-offset byte sent on any of the streams\n (to prevent the vulnerable QUIC stack from consuming data).\nBy meeting the conditions above, the remote peer may make the local stack\nallocate 2 x MAX_STREAMS x (stream flow control limit) bytes\nof memory. MAX_STREAMS defaults to 100, and the limit applies to both\nbidirectional and unidirectional streams, making it 200 in total. The default\nflow control window for a stream is 512kB. The remote peer may\nforce the vulnerable QUIC stack to allocate 100MB of heap per connection.\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:19.335Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/64d3102fb5b54311e92517f26ba00169d719e74a"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/2e8f54666b3fb7b05ff5f58aa6cac9285163654e"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/4533ee8a5686c953ed3b644738ac4bdf20806538"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/f9eaecf5bdd6692da052bc65b0332af2a938ac03"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "QUIC Connection-Level Flow Control is Not Enforced for Streams",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-75804",
"datePublished": "2026-09-29T15:32:19.335Z",
"dateReserved": "2026-08-18T09:34:32.659Z",
"dateUpdated": "2026-09-29T17:15:40.043Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-34183 (GCVE-0-2026-34183)
Vulnerability from cvelistv5
Published
2026-06-09 16:03
Modified
2026-06-10 15:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1325 - Improperly Controlled Sequential Memory Allocation
Summary
Issue summary: Remote peer may exhaust heap memory of the QUIC
server or client by flooding it with packets containing PATH_CHALLENGE
frames.
Impact summary: A malicious remote peer can cause an unbounded
memory allocation which can lead to an abnormal termination of the
application acting as a QUIC client or server and a Denial of Service.
A remote peer may exhaust heap memory by flooding the local
QUIC stack with PATH_CHALLENGE frames. The local QUIC stack
allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives.
The allocated PATH_RESPONSE frame gets freed only when the remote
peer acknowledges reception of the PATH_RESPONSE frame which will
not be done by a malicious peer.
The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by
this issue. The QUIC stack is outside of OpenSSL FIPS module
boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-34183",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-10T15:50:50.340971Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T15:51:12.557Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.1",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.3",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.7",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.6",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Abhinav Agarwal"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Alexandr Nedvedicky"
}
],
"datePublic": "2026-06-09T14:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: Remote peer may exhaust heap memory of the QUIC\u003cbr\u003eserver or client by flooding it with packets containing PATH_CHALLENGE\u003cbr\u003eframes.\u003cbr\u003e\u003cbr\u003eImpact summary: A malicious remote peer can cause an unbounded\u003cbr\u003ememory allocation which can lead to an abnormal termination of the\u003cbr\u003eapplication acting as a QUIC client or server and a Denial of Service.\u003cbr\u003e\u003cbr\u003eA remote peer may exhaust heap memory by flooding the local\u003cbr\u003eQUIC stack with PATH_CHALLENGE frames. The local QUIC stack\u003cbr\u003eallocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives.\u003cbr\u003eThe allocated PATH_RESPONSE frame gets freed only when the remote\u003cbr\u003epeer acknowledges reception of the PATH_RESPONSE frame which will\u003cbr\u003enot be done by a malicious peer.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by\u003cbr\u003ethis issue. The QUIC stack is outside of OpenSSL FIPS module\u003cbr\u003eboundary."
}
],
"value": "Issue summary: Remote peer may exhaust heap memory of the QUIC\nserver or client by flooding it with packets containing PATH_CHALLENGE\nframes.\n\nImpact summary: A malicious remote peer can cause an unbounded\nmemory allocation which can lead to an abnormal termination of the\napplication acting as a QUIC client or server and a Denial of Service.\n\nA remote peer may exhaust heap memory by flooding the local\nQUIC stack with PATH_CHALLENGE frames. The local QUIC stack\nallocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives.\nThe allocated PATH_RESPONSE frame gets freed only when the remote\npeer acknowledges reception of the PATH_RESPONSE frame which will\nnot be done by a malicious peer.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by\nthis issue. The QUIC stack is outside of OpenSSL FIPS module\nboundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Moderate"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1325",
"description": "CWE-1325 Improperly Controlled Sequential Memory Allocation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T07:47:56.298Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260609.txt"
},
{
"name": "4.0.1 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/fbaa83859c01ad64f497b757aaf51be7d05ed9eb"
},
{
"name": "3.6.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/5b306efb0b3779dfdd0803b4afc9d08c91f11517"
},
{
"name": "3.5.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/7d06955ebe0ecf8adfd4c1e92018586da47ef9ac"
},
{
"name": "3.4.6 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/d2e9efbe4900a373227deb136e8665401404ffac"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-34183",
"datePublished": "2026-06-09T16:03:23.623Z",
"dateReserved": "2026-03-26T09:29:36.013Z",
"dateUpdated": "2026-06-10T15:51:12.557Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-50219 (GCVE-0-2026-50219)
Vulnerability from cvelistv5
Published
2026-06-04 04:20
Modified
2026-06-04 12:36
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_ParserFree, or XML_ParserReset from within handlers in cases of a policy violation. Thus, a use-after-free can occur,
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-50219",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-04T12:36:01.001143Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-04T12:36:14.744Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_ParserFree, or XML_ParserReset from within handlers in cases of a policy violation. Thus, a use-after-free can occur,"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-04T04:23:59.788Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1246"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-50219",
"datePublished": "2026-06-04T04:20:32.666Z",
"dateReserved": "2026-06-04T04:20:31.953Z",
"dateUpdated": "2026-06-04T12:36:14.744Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-63076 (GCVE-0-2026-63076)
Vulnerability from cvelistv5
Published
2026-08-25 13:00
Modified
2026-08-25 14:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
Issue summary: OpenSSL CMP password based protection verification only
checks whether the protectionAlg parameter was not NULL and not its
ASN.1 type, before treating it as a PBMParameter. A crafted message can
contain a parameter of a different type, which is then dereferenced as an
invalid pointer.
Impact summary: A remote, unauthenticated attacker can crash an application
acting as a CMP server that accepts PBM-protected messages, or a CMP client
talking to a malicious or intercepted CMP server, resulting in a Denial of
Service.
CWE: CWE-476: NULL Pointer Dereference
Description: When verifying the password-based MAC protection of a CMP
message, OpenSSL library reads the protectionAlg algorithm parameter with
X509_ALGOR_get0(), which returns both the parameter type and its value
pointer. The value is then cast to an ASN1_STRING and treated as the
expected PBMParameter after only checking that pointer is not NULL. The
parameter type returned by X509_ALGOR_get0() was never consulted.
This happens during protection verification, before any MAC is computed, so
no knowledge of the PBM shared secret is required; the only precondition is
that PBM verification is reachable. On the server side this is reached from
OSSL_CMP_SRV_process_request() for any application that stands up a CMP
server accepting PBM-protected messages, and on the client side from CMP
response validation against a malicious or on-path (MITM) server. The
reliable consequence is a denial of service; there is no memory disclosure,
no controlled memory write, and no path to code execution. CMP is a
specialized feature that an application must explicitly enable.
FIPS impact: no
As the CMP code lives outside the FIPS module boundary, no FIPS modules
are affected by this CVE.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-63076",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T14:37:28.943884Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T14:37:32.193Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.2",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.4",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.8",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.7",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.22",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Ying Dong"
},
{
"lang": "en",
"type": "reporter",
"value": "Bhabani Sankar Das"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Kubec"
}
],
"datePublic": "2026-08-25T11:36:16.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: OpenSSL CMP password based protection verification only\u003cbr\u003echecks whether the protectionAlg parameter was not NULL and not its\u003cbr\u003eASN.1 type, before treating it as a PBMParameter. A crafted message can\u003cbr\u003econtain a parameter of a different type, which is then dereferenced as an\u003cbr\u003einvalid pointer.\u003cbr\u003e\u003cbr\u003eImpact summary: A remote, unauthenticated attacker can crash an application\u003cbr\u003eacting as a CMP server that accepts PBM-protected messages, or a CMP client\u003cbr\u003etalking to a malicious or intercepted CMP server, resulting in a Denial of\u003cbr\u003eService.\u003cbr\u003e\u003cbr\u003eCWE: CWE-476: NULL Pointer Dereference\u003cbr\u003e\u003cbr\u003eDescription: When verifying the password-based MAC protection of a CMP\u003cbr\u003emessage, OpenSSL library reads the protectionAlg algorithm parameter with\u003cbr\u003eX509_ALGOR_get0(), which returns both the parameter type and its value\u003cbr\u003epointer. The value is then cast to an ASN1_STRING and treated as the\u003cbr\u003eexpected PBMParameter after only checking that pointer is not NULL. The\u003cbr\u003eparameter type returned by X509_ALGOR_get0() was never consulted.\u003cbr\u003e\u003cbr\u003eThis happens during protection verification, before any MAC is computed, so\u003cbr\u003eno knowledge of the PBM shared secret is required; the only precondition is\u003cbr\u003ethat PBM verification is reachable. On the server side this is reached from\u003cbr\u003eOSSL_CMP_SRV_process_request() for any application that stands up a CMP\u003cbr\u003eserver accepting PBM-protected messages, and on the client side from CMP\u003cbr\u003eresponse validation against a malicious or on-path (MITM) server. The\u003cbr\u003ereliable consequence is a denial of service; there is no memory disclosure,\u003cbr\u003eno controlled memory write, and no path to code execution. CMP is a\u003cbr\u003especialized feature that an application must explicitly enable.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eAs the CMP code lives outside the FIPS module boundary, no FIPS modules\u003cbr\u003eare affected by this CVE."
}
],
"value": "Issue summary: OpenSSL CMP password based protection verification only\nchecks whether the protectionAlg parameter was not NULL and not its\nASN.1 type, before treating it as a PBMParameter. A crafted message can\ncontain a parameter of a different type, which is then dereferenced as an\ninvalid pointer.\n\nImpact summary: A remote, unauthenticated attacker can crash an application\nacting as a CMP server that accepts PBM-protected messages, or a CMP client\ntalking to a malicious or intercepted CMP server, resulting in a Denial of\nService.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: When verifying the password-based MAC protection of a CMP\nmessage, OpenSSL library reads the protectionAlg algorithm parameter with\nX509_ALGOR_get0(), which returns both the parameter type and its value\npointer. The value is then cast to an ASN1_STRING and treated as the\nexpected PBMParameter after only checking that pointer is not NULL. The\nparameter type returned by X509_ALGOR_get0() was never consulted.\n\nThis happens during protection verification, before any MAC is computed, so\nno knowledge of the PBM shared secret is required; the only precondition is\nthat PBM verification is reachable. On the server side this is reached from\nOSSL_CMP_SRV_process_request() for any application that stands up a CMP\nserver accepting PBM-protected messages, and on the client side from CMP\nresponse validation against a malicious or on-path (MITM) server. The\nreliable consequence is a denial of service; there is no memory disclosure,\nno controlled memory write, and no path to code execution. CMP is a\nspecialized feature that an application must explicitly enable.\n\nFIPS impact: no\nAs the CMP code lives outside the FIPS module boundary, no FIPS modules\nare affected by this CVE."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Moderate"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T13:00:11.218Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260825.txt"
},
{
"name": "4.0.2 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/a17cc8d612ecff6d94a9b7ca8b5283ddf5ff570e"
},
{
"name": "3.6.4 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/a7af46a92d0ce19a90e669ef56d2576a07924226"
},
{
"name": "3.5.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/cdacfff557389abfa9e4615abded2ec984517d6c"
},
{
"name": "3.4.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/a1f348ccb328c3afbd4ba6883f9b7c813c043259"
},
{
"name": "3.0.22 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/37882aa2e0256e1072442a8f62f7db45b995c45b"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Invalid Pointer Dereference in CMP Server via Crafted protectionAlg",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-63076",
"datePublished": "2026-08-25T13:00:11.218Z",
"dateReserved": "2026-07-15T13:10:26.188Z",
"dateUpdated": "2026-08-25T14:37:32.193Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-72897 (GCVE-0-2026-72897)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-29 17:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-787 - Out-of-bounds Write
Summary
Issue summary: A TLS server that calls SSL_set_SSL_CTX() to switch a
connection to a different SSL_CTX part way through a handshake may access
memory beyond the end of an internal array if the replacement context knows
about more provider signature algorithms than the context the connection was
created from. Applications which never call SSL_set_SSL_CTX() are not
affected.
Impact summary: A remote peer may be able to cause a small out-of-bounds
read, and in some circumstances a fixed-value out-of-bounds write, on the
server heap. This may lead to a Denial of Service.
CWE: CWE-787: Out-of-bounds Write
Description: A TLS connection records how many certificate slots it has
when it is created, taken from the SSL_CTX that created it: the built-in
certificate types plus one slot for each provider TLS-SIGALG entry that
context was aware of. That count sizes an internal array of per-slot
certificate validity flags.
An application may replace a connection's SSL_CTX part way through the
handshake by calling SSL_set_SSL_CTX(), most commonly from a servername
callback in order to serve a different virtual host. Doing so did not
refresh the recorded count. A provider signature algorithm's slot index is
its position in the list of whichever context resolves it, so if the
replacement context is aware of more of them than the original, an
algorithm offered by the peer can resolve to an index beyond the end of the
array. Processing the peer's signature algorithms then reads one four byte
word past the end for each such algorithm and, where the word read is zero,
writes a fixed value over it. A peer offering many of them can corrupt heap
metadata and abort the process.
Only provider signature algorithms which occupy one of the excess slots,
and which the server also has configured, have this effect. Codepoints the
replacement context does not recognise are discarded without being resolved
to a slot, and provider signature algorithms are usable only from TLS 1.3.
The two contexts must therefore be aware of different numbers of provider
signature algorithms, which requires separate library contexts, a provider
loaded between the two being created, or providers which differ in what
they advertise - in 4.0, for example, the default provider advertises SM2
where the FIPS provider does not. A deployment meeting the condition is
also unable to negotiate the affected algorithms with legitimate clients,
since the same stale count hides the corresponding certificates, so the
misconfiguration is likely to be noticed. For that reason, and because the
configuration is not the default, this issue has been assessed as Low
severity.
FIPS impact: no
No FIPS modules are affected by this issue as the affected code is outside
the OpenSSL FIPS module boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-72897",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T17:16:29.979390Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T17:16:38.842Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Filipe Casal (Trail of Bits)"
},
{
"lang": "en",
"type": "reporter",
"value": "Brandon Luo"
},
{
"lang": "en",
"type": "reporter",
"value": "Luigino Camastra (Aisle Research)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Matt Caswell"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: A TLS server that calls SSL_set_SSL_CTX() to switch a\u003cbr\u003econnection to a different SSL_CTX part way through a handshake may access\u003cbr\u003ememory beyond the end of an internal array if the replacement context knows\u003cbr\u003eabout more provider signature algorithms than the context the connection was\u003cbr\u003ecreated from. Applications which never call SSL_set_SSL_CTX() are not\u003cbr\u003eaffected.\u003cbr\u003e\u003cbr\u003eImpact summary: A remote peer may be able to cause a small out-of-bounds\u003cbr\u003eread, and in some circumstances a fixed-value out-of-bounds write, on the\u003cbr\u003eserver heap. This may lead to a Denial of Service.\u003cbr\u003e\u003cbr\u003eCWE: CWE-787: Out-of-bounds Write\u003cbr\u003e\u003cbr\u003eDescription: A TLS connection records how many certificate slots it has\u003cbr\u003ewhen it is created, taken from the SSL_CTX that created it: the built-in\u003cbr\u003ecertificate types plus one slot for each provider TLS-SIGALG entry that\u003cbr\u003econtext was aware of. That count sizes an internal array of per-slot\u003cbr\u003ecertificate validity flags.\u003cbr\u003e\u003cbr\u003eAn application may replace a connection\u0027s SSL_CTX part way through the\u003cbr\u003ehandshake by calling SSL_set_SSL_CTX(), most commonly from a servername\u003cbr\u003ecallback in order to serve a different virtual host. Doing so did not\u003cbr\u003erefresh the recorded count. A provider signature algorithm\u0027s slot index is\u003cbr\u003eits position in the list of whichever context resolves it, so if the\u003cbr\u003ereplacement context is aware of more of them than the original, an\u003cbr\u003ealgorithm offered by the peer can resolve to an index beyond the end of the\u003cbr\u003earray. Processing the peer\u0027s signature algorithms then reads one four byte\u003cbr\u003eword past the end for each such algorithm and, where the word read is zero,\u003cbr\u003ewrites a fixed value over it. A peer offering many of them can corrupt heap\u003cbr\u003emetadata and abort the process.\u003cbr\u003e\u003cbr\u003eOnly provider signature algorithms which occupy one of the excess slots,\u003cbr\u003eand which the server also has configured, have this effect. Codepoints the\u003cbr\u003ereplacement context does not recognise are discarded without being resolved\u003cbr\u003eto a slot, and provider signature algorithms are usable only from TLS 1.3.\u003cbr\u003e\u003cbr\u003eThe two contexts must therefore be aware of different numbers of provider\u003cbr\u003esignature algorithms, which requires separate library contexts, a provider\u003cbr\u003eloaded between the two being created, or providers which differ in what\u003cbr\u003ethey advertise - in 4.0, for example, the default provider advertises SM2\u003cbr\u003ewhere the FIPS provider does not. A deployment meeting the condition is\u003cbr\u003ealso unable to negotiate the affected algorithms with legitimate clients,\u003cbr\u003esince the same stale count hides the corresponding certificates, so the\u003cbr\u003emisconfiguration is likely to be noticed. For that reason, and because the\u003cbr\u003econfiguration is not the default, this issue has been assessed as Low\u003cbr\u003eseverity.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eNo FIPS modules are affected by this issue as the affected code is outside\u003cbr\u003ethe OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: A TLS server that calls SSL_set_SSL_CTX() to switch a\nconnection to a different SSL_CTX part way through a handshake may access\nmemory beyond the end of an internal array if the replacement context knows\nabout more provider signature algorithms than the context the connection was\ncreated from. Applications which never call SSL_set_SSL_CTX() are not\naffected.\n\nImpact summary: A remote peer may be able to cause a small out-of-bounds\nread, and in some circumstances a fixed-value out-of-bounds write, on the\nserver heap. This may lead to a Denial of Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: A TLS connection records how many certificate slots it has\nwhen it is created, taken from the SSL_CTX that created it: the built-in\ncertificate types plus one slot for each provider TLS-SIGALG entry that\ncontext was aware of. That count sizes an internal array of per-slot\ncertificate validity flags.\n\nAn application may replace a connection\u0027s SSL_CTX part way through the\nhandshake by calling SSL_set_SSL_CTX(), most commonly from a servername\ncallback in order to serve a different virtual host. Doing so did not\nrefresh the recorded count. A provider signature algorithm\u0027s slot index is\nits position in the list of whichever context resolves it, so if the\nreplacement context is aware of more of them than the original, an\nalgorithm offered by the peer can resolve to an index beyond the end of the\narray. Processing the peer\u0027s signature algorithms then reads one four byte\nword past the end for each such algorithm and, where the word read is zero,\nwrites a fixed value over it. A peer offering many of them can corrupt heap\nmetadata and abort the process.\n\nOnly provider signature algorithms which occupy one of the excess slots,\nand which the server also has configured, have this effect. Codepoints the\nreplacement context does not recognise are discarded without being resolved\nto a slot, and provider signature algorithms are usable only from TLS 1.3.\n\nThe two contexts must therefore be aware of different numbers of provider\nsignature algorithms, which requires separate library contexts, a provider\nloaded between the two being created, or providers which differ in what\nthey advertise - in 4.0, for example, the default provider advertises SM2\nwhere the FIPS provider does not. A deployment meeting the condition is\nalso unable to negotiate the affected algorithms with legitimate clients,\nsince the same stale count hides the corresponding certificates, so the\nmisconfiguration is likely to be noticed. For that reason, and because the\nconfiguration is not the default, this issue has been assessed as Low\nseverity.\n\nFIPS impact: no\nNo FIPS modules are affected by this issue as the affected code is outside\nthe OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:18.277Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/e87ed26b298a74d8ba61a53e9c7bcd1acac6b814"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/9c54d209486f6b1ad79fe2179c40f13200fa4f61"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/4135f553c9d3ba4a09fe752f5d30af2a6a092b2e"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/00646e5085a0d12d29e0d2f9b9bc5f7111a50922"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Out-of-Bounds Access After SSL_set_SSL_CTX() During a Handshake",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-72897",
"datePublished": "2026-09-29T15:32:18.277Z",
"dateReserved": "2026-08-10T17:02:46.613Z",
"dateUpdated": "2026-09-29T17:16:38.842Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-8924 (GCVE-0-2026-8924)
Vulnerability from cvelistv5
Published
2026-07-03 06:15
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-201 - Information Exposure Through Sent Data
Summary
A flaw in curl’s cookie parsing logic allows a malicious HTTP server to set
"super cookies" that bypass the Public Suffix List check. This enables an
attacker-controlled origin to inject cookies that curl subsequently scopes and
transmits to unrelated third-party domains.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.46.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-8924",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T16:56:31.860200Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T16:57:16.362Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3733905"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.46.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "51beed175dbfc37da3113f6acce60c630c070ce8",
"status": "affected",
"version": "e77b5b7453c1e8ccd7ec0816890d98e2f392e465",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "vegagent on hackerone"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw in curl\u2019s cookie parsing logic allows a malicious HTTP server to set\n\"super cookies\" that bypass the Public Suffix List check. This enables an\nattacker-controlled origin to inject cookies that curl subsequently scopes and\ntransmits to unrelated third-party domains."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-201",
"description": "Information Exposure Through Sent Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:20.848Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-8924.json"
},
{
"url": "https://curl.se/docs/CVE-2026-8924.html"
},
{
"url": "https://hackerone.com/reports/3733905"
}
],
"title": "trailing dot domain super cookie",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.46.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "e77b5b7453c1e8ccd7ec0816890d98e2f392e465"
},
{
"fixed": "51beed175dbfc37da3113f6acce60c630c070ce8"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0"
]
}
],
"aliases": [
"CVE-2026-8924"
],
"credits": [
{
"name": "vegagent on hackerone",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Information Exposure Through Sent Data",
"id": "CWE-201"
},
"URL": "https://curl.se/docs/CVE-2026-8924.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3733905",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-8924.html"
},
"details": "A flaw in curl\u2019s cookie parsing logic allows a malicious HTTP server to set\n\"super cookies\" that bypass the Public Suffix List check. This enables an\nattacker-controlled origin to inject cookies that curl subsequently scopes and\ntransmits to unrelated third-party domains.",
"id": "CURL-CVE-2026-8924",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "trailing dot domain super cookie"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-8924",
"datePublished": "2026-07-03T06:15:04.646Z",
"dateReserved": "2026-05-19T08:11:35.441Z",
"dateUpdated": "2026-09-15T06:03:20.848Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-75803 (GCVE-0-2026-75803)
Vulnerability from cvelistv5
Published
2026-08-25 13:00
Modified
2026-09-01 18:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-354 - Improper Validation of Integrity Check Value
Summary
Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty
ciphertext can report success without verifying the supplied authentication
tag when the operation is finalized by calling the EVP_Cipher() function.
Impact summary: Applications calling EVP_Cipher() on an empty ciphertext and
expecting the call to check the AEAD tag may accept forged messages.
CWE: CWE-354 (Improper Validation of Integrity Check Value)
Description: The EVP_Cipher() API call for AEAD ciphers behaves like a one
shot encryption and decryption call. It also verifies the AEAD tag after the
decryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphers
it skipped the AEAD tag verification when an empty ciphertext was passed to
the function. The callers of this function might believe that a successful
return indicates a valid AEAD tag for these ciphers, even when that has not
truly been validated in this case.
FIPS impact: no
The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE
as the affected algorithms are not FIPS approved and thus not implemented
in the FIPS module.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-75803",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-01T18:22:51.167833Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-01T18:23:06.793Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.2",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.4",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.8",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.7",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.22",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Billy Brumley (Rochester Institute of Technology)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Billy Brumley (Rochester Institute of Technology)"
}
],
"datePublic": "2026-08-25T15:57:42.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty\u003cbr\u003eciphertext can report success without verifying the supplied authentication\u003cbr\u003etag when the operation is finalized by calling the EVP_Cipher() function.\u003cbr\u003e\u003cbr\u003eImpact summary: Applications calling EVP_Cipher() on an empty ciphertext and\u003cbr\u003eexpecting the call to check the AEAD tag may accept forged messages.\u003cbr\u003e\u003cbr\u003eCWE: CWE-354 (Improper Validation of Integrity Check Value)\u003cbr\u003e\u003cbr\u003eDescription: The EVP_Cipher() API call for AEAD ciphers behaves like a one\u003cbr\u003eshot encryption and decryption call. It also verifies the AEAD tag after the\u003cbr\u003edecryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphers\u003cbr\u003eit skipped the AEAD tag verification when an empty ciphertext was passed to\u003cbr\u003ethe function. The callers of this function might believe that a successful\u003cbr\u003ereturn indicates a valid AEAD tag for these ciphers, even when that has not\u003cbr\u003etruly been validated in this case.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE\u003cbr\u003eas the affected algorithms are not FIPS approved and thus not implemented\u003cbr\u003ein the FIPS module."
}
],
"value": "Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty\nciphertext can report success without verifying the supplied authentication\ntag when the operation is finalized by calling the EVP_Cipher() function.\n\nImpact summary: Applications calling EVP_Cipher() on an empty ciphertext and\nexpecting the call to check the AEAD tag may accept forged messages.\n\nCWE: CWE-354 (Improper Validation of Integrity Check Value)\n\nDescription: The EVP_Cipher() API call for AEAD ciphers behaves like a one\nshot encryption and decryption call. It also verifies the AEAD tag after the\ndecryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphers\nit skipped the AEAD tag verification when an empty ciphertext was passed to\nthe function. The callers of this function might believe that a successful\nreturn indicates a valid AEAD tag for these ciphers, even when that has not\ntruly been validated in this case.\n\nFIPS impact: no\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE\nas the affected algorithms are not FIPS approved and thus not implemented\nin the FIPS module."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-354",
"description": "Improper Validation of Integrity Check Value",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T13:00:25.067Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260825.txt"
},
{
"name": "4.0.2 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/6c7aa6f8f6449b7fe0137ee8be65fcd239bd7d6a"
},
{
"name": "3.6.4 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/3621257986e27e540bf96a11570929a6e5a9e05b"
},
{
"name": "3.5.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/bdeb0cd994d915342787f117ee75044f0dc36f34"
},
{
"name": "3.4.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/bf95f5f772e9362f87b25cfa2f8cb15d984865b9"
},
{
"name": "3.0.22 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/119ab9555dc62275bbd71f6f49529b1a44feba42"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "AEAD Forgeries with Empty Ciphertext When Using EVP_Cipher()",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-75803",
"datePublished": "2026-08-25T13:00:25.067Z",
"dateReserved": "2026-08-18T09:34:32.659Z",
"dateUpdated": "2026-09-01T18:23:06.793Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-3805 (GCVE-0-2026-3805)
Vulnerability from cvelistv5
Published
2026-03-11 10:09
Modified
2026-09-15 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
When doing a second SMB request to the same host again, curl would wrongly use
a data pointer pointing into already freed memory.
References
Impacted products
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-03-11T10:16:34.391Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/03/11/4"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-3805",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-11T15:45:10.217077Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-11T15:45:38.820Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "8.13.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.19.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "e090be9f73a7a71459ef678c7cc4b1f75e3ea883",
"status": "affected",
"version": "f4831daa9b2a97e8a2921d6b62cc4dfdd0d8646e",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Daniel Wade"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Stefan Eissing"
}
],
"descriptions": [
{
"lang": "en",
"value": "When doing a second SMB request to the same host again, curl would wrongly use\na data pointer pointing into already freed memory."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:55.871Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-3805.json"
},
{
"url": "https://curl.se/docs/CVE-2026-3805.html"
},
{
"url": "https://hackerone.com/reports/3591944"
}
],
"title": "use after free in SMB connection reuse",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "8.13.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.19.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "f4831daa9b2a97e8a2921d6b62cc4dfdd0d8646e"
},
{
"fixed": "e090be9f73a7a71459ef678c7cc4b1f75e3ea883"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0"
]
}
],
"aliases": [
"CVE-2026-3805"
],
"credits": [
{
"name": "Daniel Wade",
"type": "finder"
},
{
"name": "Stefan Eissing",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Use After Free",
"id": "CWE-416"
},
"URL": "https://curl.se/docs/CVE-2026-3805.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3591944",
"last_affected": "8.18.0",
"package": "curl",
"severity": "Medium",
"www": "https://curl.se/docs/CVE-2026-3805.html"
},
"details": "When doing a second SMB request to the same host again, curl would wrongly use\na data pointer pointing into already freed memory.",
"id": "CURL-CVE-2026-3805",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-03-11T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "use after free in SMB connection reuse"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-3805",
"datePublished": "2026-03-11T10:09:37.729Z",
"dateReserved": "2026-03-08T16:07:39.817Z",
"dateUpdated": "2026-09-15T06:02:55.871Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-66046 (GCVE-0-2026-66046)
Vulnerability from cvelistv5
Published
2026-08-18 14:10
Modified
2026-10-01 15:20
Severity ?
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
VLAI Severity ?
EPSS score ?
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Summary
Expat through 2.8.3 contains a denial of service vulnerability caused by quadratic algorithmic complexity in the storeAtts() function in xmlparse.c, where processing N specified attributes with non-normalized values triggers an O(N^2) linear scan of elementType->defaultAtts to determine CDATA status. A remote unauthenticated attacker can supply a single well-formed XML document of a few megabytes to an application parsing untrusted XML to cause excessive CPU consumption, resulting in denial of service without requiring authentication, external entity resolution, or non-default parser options.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ 2.8.3 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-66046",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T13:48:24.577412Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T15:24:17.474Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "affected",
"packageURL": "pkg:github/libexpat/libexpat",
"product": "libexpat",
"repo": "https://github.com/libexpat/libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThanOrEqual": "2.8.3",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndIncluding": "2.8.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Fabian Wahle (Hap Security)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Sebastian Pipping"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulnCheck"
}
],
"datePublic": "2026-08-13T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Expat through 2.8.3 contains a denial of service vulnerability caused by quadratic algorithmic complexity in the storeAtts() function in xmlparse.c, where processing N specified attributes with non-normalized values triggers an O(N^2) linear scan of elementType-\u003edefaultAtts to determine CDATA status. A remote unauthenticated attacker can supply a single well-formed XML document of a few megabytes to an application parsing untrusted XML to cause excessive CPU consumption, resulting in denial of service without requiring authentication, external entity resolution, or non-default parser options."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-407",
"description": "Inefficient Algorithmic Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-01T15:20:15.522Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Pull Request",
"tags": [
"issue-tracking"
],
"url": "https://github.com/libexpat/libexpat/pull/1321"
},
{
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/expat-denial-of-service-via-storeatts-quadratic-complexity"
}
],
"source": {
"discovery": "UNKNOWN"
},
"tags": [
"x_open-source"
],
"title": "Expat Denial of Service via storeAtts() Quadratic Complexity",
"x_generator": {
"engine": "vulncheck"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-66046",
"datePublished": "2026-08-18T14:10:05.176Z",
"dateReserved": "2026-07-23T20:45:17.817Z",
"dateUpdated": "2026-10-01T15:20:15.522Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-74860 (GCVE-0-2026-74860)
Vulnerability from cvelistv5
Published
2026-09-08 11:27
Modified
2026-10-26 16:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-763 - Release of Invalid Pointer or Reference
Summary
A flaw was found in libxml2 with Python bindings enabled. A remote attacker could exploit this vulnerability by providing a specially crafted XML document containing a Document Type Definition (DTD) with enumerated attribute values. This triggers a double-free error in the SAX attributeDecl callback handler, where a string is freed twice. This flaw can lead to a denial of service (DoS) due to a reproducible crash in Python applications using the libxml2 SAX bindings.
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected: 0:2.12.5-10.el10_2.4 < * cpe:/o:redhat:enterprise_linux:10.2 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-74860",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-08T12:08:31.722346Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-08T12:11:11.416Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.12.5-10.el10_2.4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.12.5-9.el10_0.9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream",
"cpe:/o:redhat:enterprise_linux:8::baseos"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.9.7-21.el8_10.9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream",
"cpe:/o:redhat:enterprise_linux:8::baseos"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.9.7-21.el8_10.9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/o:redhat:enterprise_linux:9::baseos"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.9.13-14.el9_8.5",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/o:redhat:enterprise_linux:9::baseos"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.9.13-14.el9_8.5",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.4::appstream",
"cpe:/o:redhat:rhel_e4s:9.4::baseos"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.9.13-13.el9_4.10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6::appstream",
"cpe:/o:redhat:rhel_eus:9.6::baseos"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.9.13-13.el9_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:cert_manager:1.20::el9"
],
"defaultStatus": "affected",
"packageName": "cert-manager/jetstack-cert-manager-rhel9",
"product": "Cert Manager support for Red Hat OpenShift release 1.20",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1790589912",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:cert_manager:1.20::el9"
],
"defaultStatus": "affected",
"packageName": "cert-manager/cert-manager-istio-csr-rhel9",
"product": "Cert Manager support for Red Hat OpenShift release 1.20",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1790589914",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:cert_manager:1.20::el9"
],
"defaultStatus": "affected",
"packageName": "cert-manager/cert-manager-operator-rhel9",
"product": "Cert Manager support for Red Hat OpenShift release 1.20",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1790589855",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:cost_management_on_premise:1::el10"
],
"defaultStatus": "affected",
"packageName": "costmanagement/costmanagement-ui-rhel10",
"product": "Red Hat Cost Management On-Premise 1",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1791460851",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "libxml2-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2.15.4-0.1.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/cds-kubernetes-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1791978534",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/cds-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1791978528",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/haproxy-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1791978528",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/installer-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1791964013",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/rhua-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1791978693",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "unaffected",
"packageName": "podman",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unknown",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "unaffected",
"packageName": "container-tools:rhel8/podman",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "unaffected",
"packageName": "podman",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "unaffected",
"packageName": "swift-lang",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "unaffected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "unaffected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "unaffected",
"packageName": "podman",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"datePublic": "2026-03-08T09:20:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in libxml2 with Python bindings enabled. A remote attacker could exploit this vulnerability by providing a specially crafted XML document containing a Document Type Definition (DTD) with enumerated attribute values. This triggers a double-free error in the SAX attributeDecl callback handler, where a string is freed twice. This flaw can lead to a denial of service (DoS) due to a reproducible crash in Python applications using the libxml2 SAX bindings."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-763",
"description": "Release of Invalid Pointer or Reference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-26T16:16:12.528Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:64463",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:64463"
},
{
"name": "RHSA-2026:71585",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:71585"
},
{
"name": "RHSA-2026:71586",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:71586"
},
{
"name": "RHSA-2026:71641",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:71641"
},
{
"name": "RHSA-2026:72470",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:72470"
},
{
"name": "RHSA-2026:72475",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:72475"
},
{
"name": "RHSA-2026:72476",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:72476"
},
{
"name": "RHSA-2026:79357",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:79357"
},
{
"name": "RHSA-2026:82939",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:82939"
},
{
"name": "RHSA-2026:89750",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:89750"
},
{
"name": "RHSA-2026:89759",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:89759"
},
{
"name": "RHSA-2026:90309",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:90309"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-74860"
},
{
"name": "RHBZ#2529697",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2529697"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-09-08T07:16:42.486Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-03-08T09:20:00.000Z",
"value": "Made public."
}
],
"title": "Libxml2: double-free/uaf in libxml2 python bindings",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-763: Release of Invalid Pointer or Reference"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-74860",
"datePublished": "2026-09-08T11:27:45.158Z",
"dateReserved": "2026-08-17T09:57:05.862Z",
"dateUpdated": "2026-10-26T16:16:12.528Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56407 (GCVE-0-2026-56407)
Vulnerability from cvelistv5
Published
2026-06-21 15:49
Modified
2026-06-22 15:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56407",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T15:54:56.617975Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T15:55:09.731Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-21T15:49:35.779Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1262"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56407",
"datePublished": "2026-06-21T15:49:35.779Z",
"dateReserved": "2026-06-21T15:49:35.402Z",
"dateUpdated": "2026-06-22T15:55:09.731Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-0992 (GCVE-0-2026-0992)
Vulnerability from cvelistv5
Published
2026-01-15 14:20
Modified
2026-09-01 12:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Hardened Images |
Unaffected: 2.15.2-0.3.hum1 < * cpe:/a:redhat:hummingbird:1 |
||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-0992",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-15T16:31:06.823175Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-01-15T16:39:47.982Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "libxml2-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2.15.2-0.3.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_core_services:1"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat JBoss Core Services",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Nick Wellnhofer for reporting this issue."
}
],
"datePublic": "2026-01-15T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated \u003cnextCatalog\u003e elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Low"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 2.9,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-01T12:10:24.431Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:7519",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7519"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-0992"
},
{
"name": "RHBZ#2429975",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2429975"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-01-15T13:29:32.742Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-01-15T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Libxml2: libxml2: denial of service via crafted xml catalogs",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-400: Uncontrolled Resource Consumption"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-0992",
"datePublished": "2026-01-15T14:20:24.934Z",
"dateReserved": "2026-01-15T13:34:08.872Z",
"dateUpdated": "2026-09-01T12:10:24.431Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-3783 (GCVE-0-2026-3783)
Vulnerability from cvelistv5
Published
2026-03-11 10:09
Modified
2026-09-15 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-522 - Insufficiently Protected Credentials
Summary
When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer
performs a redirect to a second URL, curl could leak that token to the second
hostname under some circumstances.
If the hostname that the first request is redirected to has information in the
used .netrc file, with either of the `machine` or `default` keywords, curl
would pass on the bearer token set for the first host also to the second one.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.33.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-03-11T10:16:31.282Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/03/11/2"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-3783",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-11T14:25:28.836990Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-522",
"description": "CWE-522 Insufficiently Protected Credentials",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-11T14:26:10.788Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.33.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.19.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "e3d7401a32a46516c9e5ee877e613e62ed35bddc",
"status": "affected",
"version": "06c1bea72faabb6fad4b7ef818aafaa336c9a7aa",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "spectreglobalsec on hackerone"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a redirect to a second URL, curl could leak that token to the second\nhostname under some circumstances.\n\nIf the hostname that the first request is redirected to has information in the\nused .netrc file, with either of the `machine` or `default` keywords, curl\nwould pass on the bearer token set for the first host also to the second one."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-522",
"description": "Insufficiently Protected Credentials",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:52.569Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-3783.json"
},
{
"url": "https://curl.se/docs/CVE-2026-3783.html"
},
{
"url": "https://hackerone.com/reports/3583983"
}
],
"title": "token leak with redirect and netrc",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.33.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.19.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "06c1bea72faabb6fad4b7ef818aafaa336c9a7aa"
},
{
"fixed": "e3d7401a32a46516c9e5ee877e613e62ed35bddc"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0"
]
}
],
"aliases": [
"CVE-2026-3783"
],
"credits": [
{
"name": "spectreglobalsec on hackerone",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Insufficiently Protected Credentials",
"id": "CWE-522"
},
"URL": "https://curl.se/docs/CVE-2026-3783.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3583983",
"last_affected": "8.18.0",
"package": "curl",
"severity": "Medium",
"www": "https://curl.se/docs/CVE-2026-3783.html"
},
"details": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a redirect to a second URL, curl could leak that token to the second\nhostname under some circumstances.\n\nIf the hostname that the first request is redirected to has information in the\nused .netrc file, with either of the `machine` or `default` keywords, curl\nwould pass on the bearer token set for the first host also to the second one.",
"id": "CURL-CVE-2026-3783",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-03-11T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "token leak with redirect and netrc"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-3783",
"datePublished": "2026-03-11T10:09:08.746Z",
"dateReserved": "2026-03-08T05:09:09.891Z",
"dateUpdated": "2026-09-15T06:02:52.569Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56403 (GCVE-0-2026-56403)
Vulnerability from cvelistv5
Published
2026-06-21 15:43
Modified
2026-06-22 17:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
libexpat before 2.8.2 has an integer overflow in storeAtts.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56403",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T17:05:33.081389Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T17:05:39.258Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "libexpat before 2.8.2 has an integer overflow in storeAtts."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-21T15:43:55.849Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1232"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56403",
"datePublished": "2026-06-21T15:43:55.849Z",
"dateReserved": "2026-06-21T15:43:55.436Z",
"dateUpdated": "2026-06-22T17:05:39.258Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-6253 (GCVE-0-2026-6253)
Vulnerability from cvelistv5
Published
2026-05-13 08:28
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-522 - Insufficiently Protected Credentials
Summary
curl might erroneously pass on credentials for a first proxy to a second
proxy.
This can happen when the following conditions are true:
1. curl is setup to use specific different proxies for different URL schemes
2. the first proxy needs credentials
3. the second proxy uses no credentials
4. while using the first proxy (using say `http://`), curl is asked to follow
a redirect to a URL using another scheme (say `https://`), accessed using a
second, different, proxy
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.14.1 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-05-13T09:05:31.000Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/04/29/11"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-6253",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T17:42:30.813126Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T17:42:40.102Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3669637"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.14.1",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "188c2f166a20fa97c2325b2da7d0e5cecc13725f",
"status": "affected",
"version": "3b60bb725913ce7339aefef0a14b12df4c24db60",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
},
{
"status": "affected",
"version": "7.32.0"
},
{
"status": "affected",
"version": "7.31.0"
},
{
"status": "affected",
"version": "7.30.0"
},
{
"status": "affected",
"version": "7.29.0"
},
{
"status": "affected",
"version": "7.28.1"
},
{
"status": "affected",
"version": "7.28.0"
},
{
"status": "affected",
"version": "7.27.0"
},
{
"status": "affected",
"version": "7.26.0"
},
{
"status": "affected",
"version": "7.25.0"
},
{
"status": "affected",
"version": "7.24.0"
},
{
"status": "affected",
"version": "7.23.1"
},
{
"status": "affected",
"version": "7.23.0"
},
{
"status": "affected",
"version": "7.22.0"
},
{
"status": "affected",
"version": "7.21.7"
},
{
"status": "affected",
"version": "7.21.6"
},
{
"status": "affected",
"version": "7.21.5"
},
{
"status": "affected",
"version": "7.21.4"
},
{
"status": "affected",
"version": "7.21.3"
},
{
"status": "affected",
"version": "7.21.2"
},
{
"status": "affected",
"version": "7.21.1"
},
{
"status": "affected",
"version": "7.21.0"
},
{
"status": "affected",
"version": "7.20.1"
},
{
"status": "affected",
"version": "7.20.0"
},
{
"status": "affected",
"version": "7.19.7"
},
{
"status": "affected",
"version": "7.19.6"
},
{
"status": "affected",
"version": "7.19.5"
},
{
"status": "affected",
"version": "7.19.4"
},
{
"status": "affected",
"version": "7.19.3"
},
{
"status": "affected",
"version": "7.19.2"
},
{
"status": "affected",
"version": "7.19.1"
},
{
"status": "affected",
"version": "7.19.0"
},
{
"status": "affected",
"version": "7.18.2"
},
{
"status": "affected",
"version": "7.18.1"
},
{
"status": "affected",
"version": "7.18.0"
},
{
"status": "affected",
"version": "7.17.1"
},
{
"status": "affected",
"version": "7.17.0"
},
{
"status": "affected",
"version": "7.16.4"
},
{
"status": "affected",
"version": "7.16.3"
},
{
"status": "affected",
"version": "7.16.2"
},
{
"status": "affected",
"version": "7.16.1"
},
{
"status": "affected",
"version": "7.16.0"
},
{
"status": "affected",
"version": "7.15.5"
},
{
"status": "affected",
"version": "7.15.4"
},
{
"status": "affected",
"version": "7.15.3"
},
{
"status": "affected",
"version": "7.15.2"
},
{
"status": "affected",
"version": "7.15.1"
},
{
"status": "affected",
"version": "7.15.0"
},
{
"status": "affected",
"version": "7.14.1"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Dwij Mehta (O2 Lab"
},
{
"lang": "en",
"type": "finder",
"value": "Texas A\u0026M University)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "curl might erroneously pass on credentials for a first proxy to a second\nproxy.\n\nThis can happen when the following conditions are true:\n\n1. curl is setup to use specific different proxies for different URL schemes\n2. the first proxy needs credentials\n3. the second proxy uses no credentials\n4. while using the first proxy (using say `http://`), curl is asked to follow\n a redirect to a URL using another scheme (say `https://`), accessed using a\n second, different, proxy"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-522",
"description": "Insufficiently Protected Credentials",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:02.453Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-6253.json"
},
{
"url": "https://curl.se/docs/CVE-2026-6253.html"
},
{
"url": "https://hackerone.com/reports/3669637"
}
],
"title": "proxy credentials leak over redirect-to proxy",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.14.1"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "3b60bb725913ce7339aefef0a14b12df4c24db60"
},
{
"fixed": "188c2f166a20fa97c2325b2da7d0e5cecc13725f"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0",
"7.32.0",
"7.31.0",
"7.30.0",
"7.29.0",
"7.28.1",
"7.28.0",
"7.27.0",
"7.26.0",
"7.25.0",
"7.24.0",
"7.23.1",
"7.23.0",
"7.22.0",
"7.21.7",
"7.21.6",
"7.21.5",
"7.21.4",
"7.21.3",
"7.21.2",
"7.21.1",
"7.21.0",
"7.20.1",
"7.20.0",
"7.19.7",
"7.19.6",
"7.19.5",
"7.19.4",
"7.19.3",
"7.19.2",
"7.19.1",
"7.19.0",
"7.18.2",
"7.18.1",
"7.18.0",
"7.17.1",
"7.17.0",
"7.16.4",
"7.16.3",
"7.16.2",
"7.16.1",
"7.16.0",
"7.15.5",
"7.15.4",
"7.15.3",
"7.15.2",
"7.15.1",
"7.15.0",
"7.14.1"
]
}
],
"aliases": [
"CVE-2026-6253"
],
"credits": [
{
"name": "Dwij Mehta (O2 Lab",
"type": "finder"
},
{
"name": "Texas A\u0026M University)",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Insufficiently Protected Credentials",
"id": "CWE-522"
},
"URL": "https://curl.se/docs/CVE-2026-6253.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3669637",
"last_affected": "8.19.0",
"package": "curl",
"severity": "Medium",
"www": "https://curl.se/docs/CVE-2026-6253.html"
},
"details": "curl might erroneously pass on credentials for a first proxy to a second\nproxy.\n\nThis can happen when the following conditions are true:\n\n1. curl is setup to use specific different proxies for different URL schemes\n2. the first proxy needs credentials\n3. the second proxy uses no credentials\n4. while using the first proxy (using say `http://`), curl is asked to follow\n a redirect to a URL using another scheme (say `https://`), accessed using a\n second, different, proxy",
"id": "CURL-CVE-2026-6253",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-04-29T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "proxy credentials leak over redirect-to proxy"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-6253",
"datePublished": "2026-05-13T08:28:03.004Z",
"dateReserved": "2026-04-13T20:11:11.991Z",
"dateUpdated": "2026-09-15T06:03:02.453Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-35191 (GCVE-0-2026-35191)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-30 20:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-440 - Expected Behavior Violation
Summary
Issue summary: The OpenSSL QUIC server, when configured to not preform address
validation, can be forced to count incoming packets multiple times in its
unvalidated credit computation, leading to a violation of the RFC 9000
unvalidated connection amplification limit of 3 times the amount of data
received.
Impact summary: A remote attacker able to spoof packets to a server using the
OpenSSL QUIC implementation might use the server for an amplification of
a DDoS attack.
CWE: CWE-440: Expected Behavior Violation
Description: OpenSSL's QUIC stack, when operating as a server, enforces client
address validation (RFC 9000, Section 8), to confirm the peer address is not
used for a traffic amplification attack. If this feature is disabled on the
server, the QUIC stack limits the amount of server data that can be sent to 3
times the amount of data received from the peer address, until such time as the
TLS handshake is completed.
The OpenSSL QUIC server, when operating in non-validation mode, adds the
length of the whole datagram received to the unvalidated credit limit when
processing each QUIC packet in the datagram. A remote peer may,
after establishing a connection with an initial client hello frame, send a
subsequent datagram containing multiple QUIC packets, leading the server to
account the entire datagram length for each packet in the datagram, resulting
in the server believing that the peer has sent more data than it actually has,
thereby violating the 3x amplification limit mandated by the RFC.
FIPS impact: no
As the QUIC stack lives outside the FIPS module boundary, no FIPS modules
are affected by this CVE.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-35191",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-30T19:35:19.683843Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T20:11:09.437Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Ali Firas"
},
{
"lang": "en",
"type": "reporter",
"value": "Nikolas Gauder (NVIDIA)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Neil Horman"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: The OpenSSL QUIC server, when configured to not preform address\u003cbr\u003evalidation, can be forced to count incoming packets multiple times in its\u003cbr\u003eunvalidated credit computation, leading to a violation of the RFC 9000\u003cbr\u003eunvalidated connection amplification limit of 3 times the amount of data\u003cbr\u003ereceived.\u003cbr\u003e\u003cbr\u003eImpact summary: A remote attacker able to spoof packets to a server using the\u003cbr\u003eOpenSSL QUIC implementation might use the server for an amplification of\u003cbr\u003ea DDoS attack.\u003cbr\u003e\u003cbr\u003eCWE: CWE-440: Expected Behavior Violation \u003cbr\u003e\u003cbr\u003eDescription: OpenSSL\u0027s QUIC stack, when operating as a server, enforces client\u003cbr\u003eaddress validation (RFC 9000, Section 8), to confirm the peer address is not\u003cbr\u003eused for a traffic amplification attack. If this feature is disabled on the\u003cbr\u003eserver, the QUIC stack limits the amount of server data that can be sent to 3\u003cbr\u003etimes the amount of data received from the peer address, until such time as the\u003cbr\u003eTLS handshake is completed.\u003cbr\u003e\u003cbr\u003eThe OpenSSL QUIC server, when operating in non-validation mode, adds the\u003cbr\u003elength of the whole datagram received to the unvalidated credit limit when\u003cbr\u003eprocessing each QUIC packet in the datagram. A remote peer may,\u003cbr\u003eafter establishing a connection with an initial client hello frame, send a\u003cbr\u003esubsequent datagram containing multiple QUIC packets, leading the server to\u003cbr\u003eaccount the entire datagram length for each packet in the datagram, resulting\u003cbr\u003ein the server believing that the peer has sent more data than it actually has,\u003cbr\u003ethereby violating the 3x amplification limit mandated by the RFC.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eAs the QUIC stack lives outside the FIPS module boundary, no FIPS modules\u003cbr\u003eare affected by this CVE."
}
],
"value": "Issue summary: The OpenSSL QUIC server, when configured to not preform address\nvalidation, can be forced to count incoming packets multiple times in its\nunvalidated credit computation, leading to a violation of the RFC 9000\nunvalidated connection amplification limit of 3 times the amount of data\nreceived.\n\nImpact summary: A remote attacker able to spoof packets to a server using the\nOpenSSL QUIC implementation might use the server for an amplification of\na DDoS attack.\n\nCWE: CWE-440: Expected Behavior Violation \n\nDescription: OpenSSL\u0027s QUIC stack, when operating as a server, enforces client\naddress validation (RFC 9000, Section 8), to confirm the peer address is not\nused for a traffic amplification attack. If this feature is disabled on the\nserver, the QUIC stack limits the amount of server data that can be sent to 3\ntimes the amount of data received from the peer address, until such time as the\nTLS handshake is completed.\n\nThe OpenSSL QUIC server, when operating in non-validation mode, adds the\nlength of the whole datagram received to the unvalidated credit limit when\nprocessing each QUIC packet in the datagram. A remote peer may,\nafter establishing a connection with an initial client hello frame, send a\nsubsequent datagram containing multiple QUIC packets, leading the server to\naccount the entire datagram length for each packet in the datagram, resulting\nin the server believing that the peer has sent more data than it actually has,\nthereby violating the 3x amplification limit mandated by the RFC.\n\nFIPS impact: no\nAs the QUIC stack lives outside the FIPS module boundary, no FIPS modules\nare affected by this CVE."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-440",
"description": "CWE-440 Expected Behavior Violation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:12.944Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/e44292e58b090014232ef75bd400393851b24d1a"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/2de4c35fb13fc58f43fd8dc1d261700472ce72e5"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/0fe4442d4f8ea3af8a174046dae176e0d4717239"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "QUIC Unvalidated Amplification Credit may be Over Accounted",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-35191",
"datePublished": "2026-09-29T15:32:12.944Z",
"dateReserved": "2026-04-01T17:36:26.324Z",
"dateUpdated": "2026-09-30T20:11:09.437Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-75805 (GCVE-0-2026-75805)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-29 16:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL-pointer dereference
Summary
Issue summary: A CMP client that requests certificate revocation on the basis
of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when
processing a crafted revocation response.
Impact summary: The NULL pointer dereference happens on a read which
leads to a crash and a Denial of Service for the affected client application.
CWE: CWE-476: NULL-pointer dereference
Description: A CMP client revoking a certificate has to tell the server which
certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the
certificate itself or its issuer name and serial number. This is
'openssl cmp -cmd rr -csr <file>' on the command line, or
OSSL_CMP_exec_RR_ses() with the certificate supplied via
OSSL_CMP_CTX_set1_p10CSR() through the API.
A CSR does not contain the issuer name and serial number of the certificate,
so the client does not send them. A server may optionally name the
certificate it revoked in its response, and the client then compares that
name against what it sent. Having sent neither an issuer name nor a serial
number, it has nothing to compare against, and a server returning a specially
crafted name causes the client to read from a NULL pointer and crash.
The revocation response is checked for valid message protection before
the affected code is reached, so an attacker must be a malicious or
compromised CMP server, or a man-in-the-middle in possession of the
secret used for message protection. Clients that identify the certificate
to be revoked by a certificate or by issuer and serial number rather
than by a PKCS#10 CSR are not affected.
FIPS impact: no
No FIPS modules are affected by this issue, as the CMP protocol
implementation is outside the OpenSSL FIPS module boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-75805",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T16:54:03.315064Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T16:54:39.263Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.23",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Bhabani Sankar Das"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Bhabani Sankar Das"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Norbert Pocs"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: A CMP client that requests certificate revocation on the basis\u003cbr\u003eof a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when\u003cbr\u003eprocessing a crafted revocation response. \u003cbr\u003e\u003cbr\u003eImpact summary: The NULL pointer dereference happens on a read which \u003cbr\u003eleads to a crash and a Denial of Service for the affected client application.\u003cbr\u003e\u003cbr\u003eCWE: CWE-476: NULL-pointer dereference\u003cbr\u003e\u003cbr\u003eDescription: A CMP client revoking a certificate has to tell the server which\u003cbr\u003ecertificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the\u003cbr\u003ecertificate itself or its issuer name and serial number. This is\u003cbr\u003e\u0027openssl cmp -cmd rr -csr \u003cfile\u003e\u0027 on the command line, or\u003cbr\u003eOSSL_CMP_exec_RR_ses() with the certificate supplied via\u003cbr\u003eOSSL_CMP_CTX_set1_p10CSR() through the API.\u003cbr\u003e\u003cbr\u003eA CSR does not contain the issuer name and serial number of the certificate,\u003cbr\u003eso the client does not send them. A server may optionally name the\u003cbr\u003ecertificate it revoked in its response, and the client then compares that\u003cbr\u003ename against what it sent. Having sent neither an issuer name nor a serial\u003cbr\u003enumber, it has nothing to compare against, and a server returning a specially\u003cbr\u003ecrafted name causes the client to read from a NULL pointer and crash.\u003cbr\u003e\u003cbr\u003eThe revocation response is checked for valid message protection before\u003cbr\u003ethe affected code is reached, so an attacker must be a malicious or\u003cbr\u003ecompromised CMP server, or a man-in-the-middle in possession of the\u003cbr\u003esecret used for message protection. Clients that identify the certificate\u003cbr\u003eto be revoked by a certificate or by issuer and serial number rather\u003cbr\u003ethan by a PKCS#10 CSR are not affected.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eNo FIPS modules are affected by this issue, as the CMP protocol\u003cbr\u003eimplementation is outside the OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: A CMP client that requests certificate revocation on the basis\nof a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when\nprocessing a crafted revocation response. \n\nImpact summary: The NULL pointer dereference happens on a read which \nleads to a crash and a Denial of Service for the affected client application.\n\nCWE: CWE-476: NULL-pointer dereference\n\nDescription: A CMP client revoking a certificate has to tell the server which\ncertificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the\ncertificate itself or its issuer name and serial number. This is\n\u0027openssl cmp -cmd rr -csr \u003cfile\u003e\u0027 on the command line, or\nOSSL_CMP_exec_RR_ses() with the certificate supplied via\nOSSL_CMP_CTX_set1_p10CSR() through the API.\n\nA CSR does not contain the issuer name and serial number of the certificate,\nso the client does not send them. A server may optionally name the\ncertificate it revoked in its response, and the client then compares that\nname against what it sent. Having sent neither an issuer name nor a serial\nnumber, it has nothing to compare against, and a server returning a specially\ncrafted name causes the client to read from a NULL pointer and crash.\n\nThe revocation response is checked for valid message protection before\nthe affected code is reached, so an attacker must be a malicious or\ncompromised CMP server, or a man-in-the-middle in possession of the\nsecret used for message protection. Clients that identify the certificate\nto be revoked by a certificate or by issuer and serial number rather\nthan by a PKCS#10 CSR are not affected.\n\nFIPS impact: no\nNo FIPS modules are affected by this issue, as the CMP protocol\nimplementation is outside the OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL-pointer dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:20.408Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/7ca0ccb5172a577e9b87267d77bfe21e5481a5e7"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/7588db7fef14209c3caa3a101d11a02006b19166"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/9eb2a8a9b86136cdb39d6d7d50644dd66941cdc3"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/abf02872a4b71767ecc72293424420f5b009190f"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "NULL Pointer Dereference in CMP Client Revocation Response Handling",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-75805",
"datePublished": "2026-09-29T15:32:20.408Z",
"dateReserved": "2026-08-18T09:34:32.659Z",
"dateUpdated": "2026-09-29T16:54:39.263Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-1965 (GCVE-0-2026-1965)
Vulnerability from cvelistv5
Published
2026-03-11 10:08
Modified
2026-09-15 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Summary
libcurl can in some circumstances reuse the wrong connection when asked to do
an Negotiate-authenticated HTTP or HTTPS request.
libcurl features a pool of recent connections so that subsequent requests can
reuse an existing connection to avoid overhead.
When reusing a connection a range of criterion must first be met. Due to a
logical error in the code, a request that was issued by an application could
wrongfully reuse an existing connection to the same server that was
authenticated using different credentials. One underlying reason being that
Negotiate sometimes authenticates *connections* and not *requests*, contrary
to how HTTP is designed to work.
An application that allows Negotiate authentication to a server (that responds
wanting Negotiate) with `user1:password1` and then does another operation to
the same server also using Negotiate but with `user2:password2` (while the
previous connection is still alive) - the second request wrongly reused the
same connection and since it then sees that the Negotiate negotiation is
already made, it sends the request over that connection thinking it uses
the user2 credentials when it is in fact still using the connection
authenticated for user1...
The set of authentication methods to use is set with `CURLOPT_HTTPAUTH`.
Applications can disable libcurl's reuse of connections and thus mitigate this
problem, by using one of the following libcurl options to alter how
connections are or are not reused: `CURLOPT_FRESH_CONNECT`,
`CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the
curl_multi API).
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.10.6 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-1965",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-11T14:31:56.061598Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-305",
"description": "CWE-305 Authentication Bypass by Primary Weakness",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-11T14:32:38.895Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.10.6",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.19.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "f1a39f221d57354990e3eeeddc3404aede2aff70",
"status": "affected",
"version": "e56ae1426cb7a0a4a427cf8d6099a821fdaae428",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
},
{
"status": "affected",
"version": "7.32.0"
},
{
"status": "affected",
"version": "7.31.0"
},
{
"status": "affected",
"version": "7.30.0"
},
{
"status": "affected",
"version": "7.29.0"
},
{
"status": "affected",
"version": "7.28.1"
},
{
"status": "affected",
"version": "7.28.0"
},
{
"status": "affected",
"version": "7.27.0"
},
{
"status": "affected",
"version": "7.26.0"
},
{
"status": "affected",
"version": "7.25.0"
},
{
"status": "affected",
"version": "7.24.0"
},
{
"status": "affected",
"version": "7.23.1"
},
{
"status": "affected",
"version": "7.23.0"
},
{
"status": "affected",
"version": "7.22.0"
},
{
"status": "affected",
"version": "7.21.7"
},
{
"status": "affected",
"version": "7.21.6"
},
{
"status": "affected",
"version": "7.21.5"
},
{
"status": "affected",
"version": "7.21.4"
},
{
"status": "affected",
"version": "7.21.3"
},
{
"status": "affected",
"version": "7.21.2"
},
{
"status": "affected",
"version": "7.21.1"
},
{
"status": "affected",
"version": "7.21.0"
},
{
"status": "affected",
"version": "7.20.1"
},
{
"status": "affected",
"version": "7.20.0"
},
{
"status": "affected",
"version": "7.19.7"
},
{
"status": "affected",
"version": "7.19.6"
},
{
"status": "affected",
"version": "7.19.5"
},
{
"status": "affected",
"version": "7.19.4"
},
{
"status": "affected",
"version": "7.19.3"
},
{
"status": "affected",
"version": "7.19.2"
},
{
"status": "affected",
"version": "7.19.1"
},
{
"status": "affected",
"version": "7.19.0"
},
{
"status": "affected",
"version": "7.18.2"
},
{
"status": "affected",
"version": "7.18.1"
},
{
"status": "affected",
"version": "7.18.0"
},
{
"status": "affected",
"version": "7.17.1"
},
{
"status": "affected",
"version": "7.17.0"
},
{
"status": "affected",
"version": "7.16.4"
},
{
"status": "affected",
"version": "7.16.3"
},
{
"status": "affected",
"version": "7.16.2"
},
{
"status": "affected",
"version": "7.16.1"
},
{
"status": "affected",
"version": "7.16.0"
},
{
"status": "affected",
"version": "7.15.5"
},
{
"status": "affected",
"version": "7.15.4"
},
{
"status": "affected",
"version": "7.15.3"
},
{
"status": "affected",
"version": "7.15.2"
},
{
"status": "affected",
"version": "7.15.1"
},
{
"status": "affected",
"version": "7.15.0"
},
{
"status": "affected",
"version": "7.14.1"
},
{
"status": "affected",
"version": "7.14.0"
},
{
"status": "affected",
"version": "7.13.2"
},
{
"status": "affected",
"version": "7.13.1"
},
{
"status": "affected",
"version": "7.13.0"
},
{
"status": "affected",
"version": "7.12.3"
},
{
"status": "affected",
"version": "7.12.2"
},
{
"status": "affected",
"version": "7.12.1"
},
{
"status": "affected",
"version": "7.12.0"
},
{
"status": "affected",
"version": "7.11.2"
},
{
"status": "affected",
"version": "7.11.1"
},
{
"status": "affected",
"version": "7.11.0"
},
{
"status": "affected",
"version": "7.10.8"
},
{
"status": "affected",
"version": "7.10.7"
},
{
"status": "affected",
"version": "7.10.6"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Zhicheng Chen"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "libcurl can in some circumstances reuse the wrong connection when asked to do\nan Negotiate-authenticated HTTP or HTTPS request.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criterion must first be met. Due to a\nlogical error in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials. One underlying reason being that\nNegotiate sometimes authenticates *connections* and not *requests*, contrary\nto how HTTP is designed to work.\n\nAn application that allows Negotiate authentication to a server (that responds\nwanting Negotiate) with `user1:password1` and then does another operation to\nthe same server also using Negotiate but with `user2:password2` (while the\nprevious connection is still alive) - the second request wrongly reused the\nsame connection and since it then sees that the Negotiate negotiation is\nalready made, it sends the request over that connection thinking it uses\nthe user2 credentials when it is in fact still using the connection\nauthenticated for user1...\n\nThe set of authentication methods to use is set with `CURLOPT_HTTPAUTH`.\n\nApplications can disable libcurl\u0027s reuse of connections and thus mitigate this\nproblem, by using one of the following libcurl options to alter how\nconnections are or are not reused: `CURLOPT_FRESH_CONNECT`,\n`CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the\ncurl_multi API)."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-305",
"description": "Authentication Bypass by Primary Weakness",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:49.175Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-1965.json"
},
{
"url": "https://curl.se/docs/CVE-2026-1965.html"
}
],
"title": "bad reuse of HTTP Negotiate connection",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.10.6"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.19.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "e56ae1426cb7a0a4a427cf8d6099a821fdaae428"
},
{
"fixed": "f1a39f221d57354990e3eeeddc3404aede2aff70"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0",
"7.32.0",
"7.31.0",
"7.30.0",
"7.29.0",
"7.28.1",
"7.28.0",
"7.27.0",
"7.26.0",
"7.25.0",
"7.24.0",
"7.23.1",
"7.23.0",
"7.22.0",
"7.21.7",
"7.21.6",
"7.21.5",
"7.21.4",
"7.21.3",
"7.21.2",
"7.21.1",
"7.21.0",
"7.20.1",
"7.20.0",
"7.19.7",
"7.19.6",
"7.19.5",
"7.19.4",
"7.19.3",
"7.19.2",
"7.19.1",
"7.19.0",
"7.18.2",
"7.18.1",
"7.18.0",
"7.17.1",
"7.17.0",
"7.16.4",
"7.16.3",
"7.16.2",
"7.16.1",
"7.16.0",
"7.15.5",
"7.15.4",
"7.15.3",
"7.15.2",
"7.15.1",
"7.15.0",
"7.14.1",
"7.14.0",
"7.13.2",
"7.13.1",
"7.13.0",
"7.12.3",
"7.12.2",
"7.12.1",
"7.12.0",
"7.11.2",
"7.11.1",
"7.11.0",
"7.10.8",
"7.10.7",
"7.10.6"
]
}
],
"aliases": [
"CVE-2026-1965"
],
"credits": [
{
"name": "Zhicheng Chen",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Authentication Bypass by Primary Weakness",
"id": "CWE-305"
},
"URL": "https://curl.se/docs/CVE-2026-1965.json",
"affects": "both",
"last_affected": "8.18.0",
"package": "curl",
"severity": "Medium",
"www": "https://curl.se/docs/CVE-2026-1965.html"
},
"details": "libcurl can in some circumstances reuse the wrong connection when asked to do\nan Negotiate-authenticated HTTP or HTTPS request.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criterion must first be met. Due to a\nlogical error in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials. One underlying reason being that\nNegotiate sometimes authenticates *connections* and not *requests*, contrary\nto how HTTP is designed to work.\n\nAn application that allows Negotiate authentication to a server (that responds\nwanting Negotiate) with `user1:password1` and then does another operation to\nthe same server also using Negotiate but with `user2:password2` (while the\nprevious connection is still alive) - the second request wrongly reused the\nsame connection and since it then sees that the Negotiate negotiation is\nalready made, it sends the request over that connection thinking it uses\nthe user2 credentials when it is in fact still using the connection\nauthenticated for user1...\n\nThe set of authentication methods to use is set with `CURLOPT_HTTPAUTH`.\n\nApplications can disable libcurl\u0027s reuse of connections and thus mitigate this\nproblem, by using one of the following libcurl options to alter how\nconnections are or are not reused: `CURLOPT_FRESH_CONNECT`,\n`CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the\ncurl_multi API).",
"id": "CURL-CVE-2026-1965",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-03-11T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "bad reuse of HTTP Negotiate connection"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-1965",
"datePublished": "2026-03-11T10:08:52.431Z",
"dateReserved": "2026-02-05T11:00:50.882Z",
"dateUpdated": "2026-09-15T06:02:49.175Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-8926 (GCVE-0-2026-8926)
Vulnerability from cvelistv5
Published
2026-07-03 06:15
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-522 - Insufficiently Protected Credentials
Summary
When asking curl to use a `.netrc` file to find credentials and at the same
time specifying a URL with a username (without a password), like
`https://user@example.com/`, curl could wrongly get and use the password for
*another* user set in the `.netrc` file for that host if such a one exists and
there is no match for the specified user.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-8926",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T17:01:57.524535Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T17:02:33.061Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3735184"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "8.11.1",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "4ae1d7cc2643e4773a136395f12bc02fc6867854",
"status": "affected",
"version": "e9b9bbac22c26cf67316fa8e6c6b9e831af31949",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Joshua Rogers (Aisle Research)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Stefan Eissing"
}
],
"descriptions": [
{
"lang": "en",
"value": "When asking curl to use a `.netrc` file to find credentials and at the same\ntime specifying a URL with a username (without a password), like\n`https://user@example.com/`, curl could wrongly get and use the password for\n*another* user set in the `.netrc` file for that host if such a one exists and\nthere is no match for the specified user."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-522",
"description": "Insufficiently Protected Credentials",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:23.777Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-8926.json"
},
{
"url": "https://curl.se/docs/CVE-2026-8926.html"
},
{
"url": "https://hackerone.com/reports/3735184"
}
],
"title": "password leak with netrc and user in URL",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "8.11.1"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "e9b9bbac22c26cf67316fa8e6c6b9e831af31949"
},
{
"fixed": "4ae1d7cc2643e4773a136395f12bc02fc6867854"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1"
]
}
],
"aliases": [
"CVE-2026-8926"
],
"credits": [
{
"name": "Joshua Rogers (Aisle Research)",
"type": "finder"
},
{
"name": "Stefan Eissing",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Insufficiently Protected Credentials",
"id": "CWE-522"
},
"URL": "https://curl.se/docs/CVE-2026-8926.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3735184",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-8926.html"
},
"details": "When asking curl to use a `.netrc` file to find credentials and at the same\ntime specifying a URL with a username (without a password), like\n`https://user@example.com/`, curl could wrongly get and use the password for\n*another* user set in the `.netrc` file for that host if such a one exists and\nthere is no match for the specified user.",
"id": "CURL-CVE-2026-8926",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "password leak with netrc and user in URL"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-8926",
"datePublished": "2026-07-03T06:15:45.735Z",
"dateReserved": "2026-05-19T08:11:58.393Z",
"dateUpdated": "2026-09-15T06:03:23.777Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-35189 (GCVE-0-2026-35189)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-30 20:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Issue summary: A certificate with many nameRelativeToCRLIssuer CRL
distribution points causes disproportionate heap growth when OpenSSL caches
X.509 extensions.
Impact summary: Receiving a crafted certificate from a malicious peer can lead
to significant memory pressure and possible Denial of Service in clients or
in servers that solicit client certificates.
CWE: CWE-770: Allocation of Resources Without Limits or Throttling
Description: A certificate or a set of certificates that fits under the limit for
size of certificates accepted from the peer (~100 KiB) can result in allocation
of several hundred MiB of resident memory on the receiving side
during a normal TLS handshake. This may be enough to crash the client or
server, if multiple concurrent connections lead to similarly large memory
allocations.
The fix postpones processing of the CRL distribution points extensions in
certificates to the time when the processed value is required for CRL processing.
This avoids keeping large memory allocations for a long time when such
certificates are received.
FIPS impact: no
The affected code is outside the FIPS module boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-35189",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-30T19:36:26.041392Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T20:11:09.577Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.23",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
},
{
"lessThan": "1.1.1zj",
"status": "affected",
"version": "1.1.1",
"versionType": "custom"
},
{
"lessThan": "1.0.2zs",
"status": "affected",
"version": "1.0.2",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Fuzz0x (ZKSC Institute of Security Research)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Viktor Dukhovni"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: A certificate with many nameRelativeToCRLIssuer CRL\u003cbr\u003edistribution points causes disproportionate heap growth when OpenSSL caches\u003cbr\u003eX.509 extensions.\u003cbr\u003e\u003cbr\u003eImpact summary: Receiving a crafted certificate from a malicious peer can lead\u003cbr\u003eto significant memory pressure and possible Denial of Service in clients or\u003cbr\u003ein servers that solicit client certificates.\u003cbr\u003e\u003cbr\u003eCWE: CWE-770: Allocation of Resources Without Limits or Throttling\u003cbr\u003e\u003cbr\u003eDescription: A certificate or a set of certificates that fits under the limit for\u003cbr\u003esize of certificates accepted from the peer (~100 KiB) can result in allocation\u003cbr\u003eof several hundred MiB of resident memory on the receiving side\u003cbr\u003eduring a normal TLS handshake. This may be enough to crash the client or\u003cbr\u003eserver, if multiple concurrent connections lead to similarly large memory\u003cbr\u003eallocations.\u003cbr\u003e\u003cbr\u003eThe fix postpones processing of the CRL distribution points extensions in\u003cbr\u003ecertificates to the time when the processed value is required for CRL processing.\u003cbr\u003eThis avoids keeping large memory allocations for a long time when such\u003cbr\u003ecertificates are received.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eThe affected code is outside the FIPS module boundary."
}
],
"value": "Issue summary: A certificate with many nameRelativeToCRLIssuer CRL\ndistribution points causes disproportionate heap growth when OpenSSL caches\nX.509 extensions.\n\nImpact summary: Receiving a crafted certificate from a malicious peer can lead\nto significant memory pressure and possible Denial of Service in clients or\nin servers that solicit client certificates.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: A certificate or a set of certificates that fits under the limit for\nsize of certificates accepted from the peer (~100 KiB) can result in allocation\nof several hundred MiB of resident memory on the receiving side\nduring a normal TLS handshake. This may be enough to crash the client or\nserver, if multiple concurrent connections lead to similarly large memory\nallocations.\n\nThe fix postpones processing of the CRL distribution points extensions in\ncertificates to the time when the processed value is required for CRL processing.\nThis avoids keeping large memory allocations for a long time when such\ncertificates are received.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:11.889Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/2b93c73b2c70ddc4c61c5e4bfaaa6bd71379eb84"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/8e0efc7549b7ff8246d40e585e3fd604f728473f"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/3842516cc15e8b2cf55747011045e77547e71d89"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/c72ae182cac17a82e4246c6ecd4e9c4ec3586ec9"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Excessive Memory Allocation in Relative CRLDP Processing",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-35189",
"datePublished": "2026-09-29T15:32:11.889Z",
"dateReserved": "2026-04-01T17:36:26.323Z",
"dateUpdated": "2026-09-30T20:11:09.577Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-1757 (GCVE-0-2026-1757)
Vulnerability from cvelistv5
Published
2026-02-02 12:38
Modified
2026-09-01 11:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Summary
A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where memory allocated for user input is not properly released under certain conditions. When a user submits input consisting only of whitespace, the program skips command execution but fails to free the allocated buffer. Repeating this action causes memory to continuously accumulate. Over time, this can exhaust system memory and terminate the xmllint process, creating a denial-of-service condition on the local system.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Hardened Images |
Unaffected: 2.15.2-0.3.hum1 < * cpe:/a:redhat:hummingbird:1 |
||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-1757",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-02T17:35:15.061136Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-02T17:35:36.990Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "libxml2-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2.15.2-0.3.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unknown",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_core_services:1"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat JBoss Core Services",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank lanbigking for reporting this issue."
}
],
"datePublic": "2026-02-02T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where memory allocated for user input is not properly released under certain conditions. When a user submits input consisting only of whitespace, the program skips command execution but fails to free the allocated buffer. Repeating this action causes memory to continuously accumulate. Over time, this can exhaust system memory and terminate the xmllint process, creating a denial-of-service condition on the local system."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Moderate"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-401",
"description": "Missing Release of Memory after Effective Lifetime",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-01T11:54:59.951Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:7519",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7519"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-1757"
},
{
"name": "RHBZ#2435940",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2435940"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/1009"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-02T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-02-02T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Libxml2: memory leak leading to local denial of service in xmllint interactive shell",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-401: Missing Release of Memory after Effective Lifetime"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-1757",
"datePublished": "2026-02-02T12:38:14.588Z",
"dateReserved": "2026-02-02T11:43:42.248Z",
"dateUpdated": "2026-09-01T11:54:59.951Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-8932 (GCVE-0-2026-8932)
Vulnerability from cvelistv5
Published
2026-07-03 06:16
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Summary
libcurl would reuse a previously created connection even when some mTLS config
related option had been changed that should have prohibited reuse.
libcurl keeps previously used connections in a connection pool for subsequent
transfers to reuse if one of them matches the setup. However, some TLS
settings related to client certificates were left out from the configuration
match checks, making them match too easily. In particular options related to
the private key.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.7.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-8932",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T16:58:28.124167Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T16:59:07.104Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3733910"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.7.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "7541ae569d82fb308a5e2d94916027da4fa3ba3e",
"status": "affected",
"version": "a1d6ad26100bc493c7b04f1301b1634b7f5aa8b4",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
},
{
"status": "affected",
"version": "7.32.0"
},
{
"status": "affected",
"version": "7.31.0"
},
{
"status": "affected",
"version": "7.30.0"
},
{
"status": "affected",
"version": "7.29.0"
},
{
"status": "affected",
"version": "7.28.1"
},
{
"status": "affected",
"version": "7.28.0"
},
{
"status": "affected",
"version": "7.27.0"
},
{
"status": "affected",
"version": "7.26.0"
},
{
"status": "affected",
"version": "7.25.0"
},
{
"status": "affected",
"version": "7.24.0"
},
{
"status": "affected",
"version": "7.23.1"
},
{
"status": "affected",
"version": "7.23.0"
},
{
"status": "affected",
"version": "7.22.0"
},
{
"status": "affected",
"version": "7.21.7"
},
{
"status": "affected",
"version": "7.21.6"
},
{
"status": "affected",
"version": "7.21.5"
},
{
"status": "affected",
"version": "7.21.4"
},
{
"status": "affected",
"version": "7.21.3"
},
{
"status": "affected",
"version": "7.21.2"
},
{
"status": "affected",
"version": "7.21.1"
},
{
"status": "affected",
"version": "7.21.0"
},
{
"status": "affected",
"version": "7.20.1"
},
{
"status": "affected",
"version": "7.20.0"
},
{
"status": "affected",
"version": "7.19.7"
},
{
"status": "affected",
"version": "7.19.6"
},
{
"status": "affected",
"version": "7.19.5"
},
{
"status": "affected",
"version": "7.19.4"
},
{
"status": "affected",
"version": "7.19.3"
},
{
"status": "affected",
"version": "7.19.2"
},
{
"status": "affected",
"version": "7.19.1"
},
{
"status": "affected",
"version": "7.19.0"
},
{
"status": "affected",
"version": "7.18.2"
},
{
"status": "affected",
"version": "7.18.1"
},
{
"status": "affected",
"version": "7.18.0"
},
{
"status": "affected",
"version": "7.17.1"
},
{
"status": "affected",
"version": "7.17.0"
},
{
"status": "affected",
"version": "7.16.4"
},
{
"status": "affected",
"version": "7.16.3"
},
{
"status": "affected",
"version": "7.16.2"
},
{
"status": "affected",
"version": "7.16.1"
},
{
"status": "affected",
"version": "7.16.0"
},
{
"status": "affected",
"version": "7.15.5"
},
{
"status": "affected",
"version": "7.15.4"
},
{
"status": "affected",
"version": "7.15.3"
},
{
"status": "affected",
"version": "7.15.2"
},
{
"status": "affected",
"version": "7.15.1"
},
{
"status": "affected",
"version": "7.15.0"
},
{
"status": "affected",
"version": "7.14.1"
},
{
"status": "affected",
"version": "7.14.0"
},
{
"status": "affected",
"version": "7.13.2"
},
{
"status": "affected",
"version": "7.13.1"
},
{
"status": "affected",
"version": "7.13.0"
},
{
"status": "affected",
"version": "7.12.3"
},
{
"status": "affected",
"version": "7.12.2"
},
{
"status": "affected",
"version": "7.12.1"
},
{
"status": "affected",
"version": "7.12.0"
},
{
"status": "affected",
"version": "7.11.2"
},
{
"status": "affected",
"version": "7.11.1"
},
{
"status": "affected",
"version": "7.11.0"
},
{
"status": "affected",
"version": "7.10.8"
},
{
"status": "affected",
"version": "7.10.7"
},
{
"status": "affected",
"version": "7.10.6"
},
{
"status": "affected",
"version": "7.10.5"
},
{
"status": "affected",
"version": "7.10.4"
},
{
"status": "affected",
"version": "7.10.3"
},
{
"status": "affected",
"version": "7.10.2"
},
{
"status": "affected",
"version": "7.10.1"
},
{
"status": "affected",
"version": "7.10"
},
{
"status": "affected",
"version": "7.9.8"
},
{
"status": "affected",
"version": "7.9.7"
},
{
"status": "affected",
"version": "7.9.6"
},
{
"status": "affected",
"version": "7.9.5"
},
{
"status": "affected",
"version": "7.9.4"
},
{
"status": "affected",
"version": "7.9.3"
},
{
"status": "affected",
"version": "7.9.2"
},
{
"status": "affected",
"version": "7.9.1"
},
{
"status": "affected",
"version": "7.9"
},
{
"status": "affected",
"version": "7.8.1"
},
{
"status": "affected",
"version": "7.8"
},
{
"status": "affected",
"version": "7.7.3"
},
{
"status": "affected",
"version": "7.7.2"
},
{
"status": "affected",
"version": "7.7.1"
},
{
"status": "affected",
"version": "7.7"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Joshua Rogers (Aisle Research)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Joshua Rogers (Aisle Research)"
}
],
"descriptions": [
{
"lang": "en",
"value": "libcurl would reuse a previously created connection even when some mTLS config\nrelated option had been changed that should have prohibited reuse.\n\nlibcurl keeps previously used connections in a connection pool for subsequent\ntransfers to reuse if one of them matches the setup. However, some TLS\nsettings related to client certificates were left out from the configuration\nmatch checks, making them match too easily. In particular options related to\nthe private key."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-305",
"description": "Authentication Bypass by Primary Weakness",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:27.324Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-8932.json"
},
{
"url": "https://curl.se/docs/CVE-2026-8932.html"
},
{
"url": "https://hackerone.com/reports/3733910"
}
],
"title": "incomplete mTLS config matching in conn reuse",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.7.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "a1d6ad26100bc493c7b04f1301b1634b7f5aa8b4"
},
{
"fixed": "7541ae569d82fb308a5e2d94916027da4fa3ba3e"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0",
"7.32.0",
"7.31.0",
"7.30.0",
"7.29.0",
"7.28.1",
"7.28.0",
"7.27.0",
"7.26.0",
"7.25.0",
"7.24.0",
"7.23.1",
"7.23.0",
"7.22.0",
"7.21.7",
"7.21.6",
"7.21.5",
"7.21.4",
"7.21.3",
"7.21.2",
"7.21.1",
"7.21.0",
"7.20.1",
"7.20.0",
"7.19.7",
"7.19.6",
"7.19.5",
"7.19.4",
"7.19.3",
"7.19.2",
"7.19.1",
"7.19.0",
"7.18.2",
"7.18.1",
"7.18.0",
"7.17.1",
"7.17.0",
"7.16.4",
"7.16.3",
"7.16.2",
"7.16.1",
"7.16.0",
"7.15.5",
"7.15.4",
"7.15.3",
"7.15.2",
"7.15.1",
"7.15.0",
"7.14.1",
"7.14.0",
"7.13.2",
"7.13.1",
"7.13.0",
"7.12.3",
"7.12.2",
"7.12.1",
"7.12.0",
"7.11.2",
"7.11.1",
"7.11.0",
"7.10.8",
"7.10.7",
"7.10.6",
"7.10.5",
"7.10.4",
"7.10.3",
"7.10.2",
"7.10.1",
"7.10",
"7.9.8",
"7.9.7",
"7.9.6",
"7.9.5",
"7.9.4",
"7.9.3",
"7.9.2",
"7.9.1",
"7.9",
"7.8.1",
"7.8",
"7.7.3",
"7.7.2",
"7.7.1",
"7.7"
]
}
],
"aliases": [
"CVE-2026-8932"
],
"credits": [
{
"name": "Joshua Rogers (Aisle Research)",
"type": "finder"
},
{
"name": "Joshua Rogers (Aisle Research)",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Authentication Bypass by Primary Weakness",
"id": "CWE-305"
},
"URL": "https://curl.se/docs/CVE-2026-8932.json",
"affects": "lib",
"issue": "https://hackerone.com/reports/3733910",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-8932.html"
},
"details": "libcurl would reuse a previously created connection even when some mTLS config\nrelated option had been changed that should have prohibited reuse.\n\nlibcurl keeps previously used connections in a connection pool for subsequent\ntransfers to reuse if one of them matches the setup. However, some TLS\nsettings related to client certificates were left out from the configuration\nmatch checks, making them match too easily. In particular options related to\nthe private key.",
"id": "CURL-CVE-2026-8932",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "incomplete mTLS config matching in conn reuse"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-8932",
"datePublished": "2026-07-03T06:16:30.485Z",
"dateReserved": "2026-05-19T08:56:58.825Z",
"dateUpdated": "2026-09-15T06:03:27.324Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-86142 (GCVE-0-2026-86142)
Vulnerability from cvelistv5
Published
2026-09-05 04:29
Modified
2026-09-14 13:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-122 - Heap-based Buffer Overflow
Summary
In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer length saturation.
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-86142",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-14T13:26:26.776763Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-14T13:50:49.902Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libxml2",
"vendor": "xmlsoft",
"versions": [
{
"lessThan": "2.15.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.15.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer length saturation."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "CWE-122 Heap-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-05T04:29:33.323Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"
},
{
"url": "https://github.com/GNOME/libxml2/commit/6b3a736c0edc74ceec3d82f5252499d7911b3a58"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1113"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-86142",
"datePublished": "2026-09-05T04:29:33.323Z",
"dateReserved": "2026-09-05T04:29:32.967Z",
"dateUpdated": "2026-09-14T13:50:49.902Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-93990 (GCVE-0-2026-93990)
Vulnerability from cvelistv5
Published
2026-09-19 22:58
Modified
2026-09-28 16:11
Severity ?
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-176 - Improper Handling of Unicode Encoding
Summary
Expat before 2.8.5 fails to validate that a high surrogate in UTF-16 input is followed by a low surrogate, allowing malformed UTF-16 sequences to be accepted. Attackers can supply UTF-16 encoded XML containing lone high surrogates that consume the following code unit, causing Expat to pass unpaired surrogates to applications built with XML_UNICODE and to silently replace input characters in other builds.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-93990",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-21T15:10:43.564847Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-21T15:13:37.622Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:github/libexpat/libexpat",
"product": "libexpat",
"repo": "https://github.com/libexpat/libexpat",
"vendor": "libexpat",
"versions": [
{
"lessThan": "2.8.5",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2.8.5",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Kartik Kenchi (netliomax25-code)"
}
],
"datePublic": "2026-09-18T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Expat before 2.8.5 fails to validate that a high surrogate in UTF-16 input is followed by a low surrogate, allowing malformed UTF-16 sequences to be accepted. Attackers can supply UTF-16 encoded XML containing lone high surrogates that consume the following code unit, causing Expat to pass unpaired surrogates to applications built with XML_UNICODE and to silently replace input characters in other builds."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "HIGH"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-176",
"description": "Improper Handling of Unicode Encoding",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-28T16:11:06.770Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "GitHub PR #1282",
"tags": [
"issue-tracking",
"patch"
],
"url": "https://github.com/libexpat/libexpat/pull/1282"
},
{
"tags": [
"patch"
],
"url": "https://github.com/libexpat/libexpat/commit/ff6e1d7e750bbe245178f51a47a965dc8342861a"
},
{
"tags": [
"release-notes"
],
"url": "https://github.com/libexpat/libexpat/releases/tag/R_2_8_5"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://blog.hartwork.org/posts/expat-2-8-5-released/"
},
{
"tags": [
"product"
],
"url": "https://github.com/libexpat/libexpat"
},
{
"name": "VulnCheck Advisory: Expat through 2.8.4 Malformed UTF-16 Acceptance via Unchecked Surrogate",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/expat-through-2.8.4-malformed-utf-16-acceptance-via-unchecked-surrogate"
}
],
"title": "Expat before 2.8.5 Malformed UTF-16 Acceptance via Unchecked Surrogate",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-93990",
"datePublished": "2026-09-19T22:58:11.224Z",
"dateReserved": "2026-09-19T10:55:49.093Z",
"dateUpdated": "2026-09-28T16:11:06.770Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-6276 (GCVE-0-2026-6276)
Vulnerability from cvelistv5
Published
2026-05-13 08:28
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-346 - Origin Validation Error
Summary
Using libcurl, when a custom `Host:` header is first set for an HTTP request
and a second request is subsequently done using the same *easy handle* but
without the custom `Host:` header set, the second request would use stale
information and pass on cookies meant for the first host in the second
request. Leak them.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.71.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-05-13T09:05:37.539Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/04/29/13"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-6276",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T17:24:29.094167Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T17:26:06.894Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3671818"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.71.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "3a19987a87f393d9394fe5acc7643f6c263c92db",
"status": "affected",
"version": "e15e51384a423be31318b3c9c7d612a1aae661fd",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Muhamad Arga Reksapati"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "Using libcurl, when a custom `Host:` header is first set for an HTTP request\nand a second request is subsequently done using the same *easy handle* but\nwithout the custom `Host:` header set, the second request would use stale\ninformation and pass on cookies meant for the first host in the second\nrequest. Leak them."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-346",
"description": "Origin Validation Error",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:04.059Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-6276.json"
},
{
"url": "https://curl.se/docs/CVE-2026-6276.html"
},
{
"url": "https://hackerone.com/reports/3671818"
}
],
"title": "stale custom cookie host causes cookie leak",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.71.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "e15e51384a423be31318b3c9c7d612a1aae661fd"
},
{
"fixed": "3a19987a87f393d9394fe5acc7643f6c263c92db"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0"
]
}
],
"aliases": [
"CVE-2026-6276"
],
"credits": [
{
"name": "Muhamad Arga Reksapati",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Origin Validation Error",
"id": "CWE-346"
},
"URL": "https://curl.se/docs/CVE-2026-6276.json",
"affects": "lib",
"issue": "https://hackerone.com/reports/3671818",
"last_affected": "8.19.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-6276.html"
},
"details": "Using libcurl, when a custom `Host:` header is first set for an HTTP request\nand a second request is subsequently done using the same *easy handle* but\nwithout the custom `Host:` header set, the second request would use stale\ninformation and pass on cookies meant for the first host in the second\nrequest. Leak them.",
"id": "CURL-CVE-2026-6276",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-04-29T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "stale custom cookie host causes cookie leak"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-6276",
"datePublished": "2026-05-13T08:28:19.273Z",
"dateReserved": "2026-04-14T14:01:54.772Z",
"dateUpdated": "2026-09-15T06:03:04.059Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54873 (GCVE-0-2026-54873)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-30 20:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Issue summary: QUIC process may keep memory for QUIC packet
buffer for much longer period than necessary.
Impact summary: Remote peer can exploit this vulnerability
by sending maliciously crafted packets, making the local
QUIC stack to keep the memory for packet buffers allocated.
The time for which the memory remains allocated is entirely
under the control of the potentially malicious remote peer.
CWE: CWE-770: Allocation of Resources Without Limits or Throttling
Description: To save copy operation from the packet buffer to the
stream reassemble buffer the QUIC stack leaves the stream data
on the packet buffer waiting to be copied to a buffer provided
by the local receiving application. The QUIC stack releases
a reference to the packet buffer only after the data are copied
to the application buffer. This design is more efficient for
legitimate data transfers but enables an attacker to allocate a lot
more memory than actually required by the data kept in the receiving
stream buffer.
To mitigate the vulnerability, the QUIC stack now calculates
and monitors memory overhead for every stream. The memory overhead
for a single stream frame is calculated as a difference between the
size of the whole packet that carries the stream frame and the size
of the stream frame itself. The memory overhead for a single stream
frame is added to the total (cumulative) memory overhead QUIC stack
keeps for each stream. Once the cumulative memory overhead exceeds
64kB, the QUIC stack moves the stream frame data from the packet
buffer to the stream buffer, starting with the next packet received.
FIPS impact: no
The FIPS module is not affected as the QUIC implementation is outside of
the OpenSSL FIPS module boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-54873",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-30T19:18:10.966747Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T20:11:09.162Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Zhen Yan (AntAISecurityLab)"
},
{
"lang": "en",
"type": "reporter",
"value": "Bhabani Sankar Das"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Alexandr Nedvedicky"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: QUIC process may keep memory for QUIC packet\u003cbr\u003ebuffer for much longer period than necessary.\u003cbr\u003e\u003cbr\u003eImpact summary: Remote peer can exploit this vulnerability\u003cbr\u003eby sending maliciously crafted packets, making the local\u003cbr\u003eQUIC stack to keep the memory for packet buffers allocated.\u003cbr\u003eThe time for which the memory remains allocated is entirely\u003cbr\u003eunder the control of the potentially malicious remote peer.\u003cbr\u003e\u003cbr\u003eCWE: CWE-770: Allocation of Resources Without Limits or Throttling\u003cbr\u003e\u003cbr\u003eDescription: To save copy operation from the packet buffer to the\u003cbr\u003estream reassemble buffer the QUIC stack leaves the stream data\u003cbr\u003eon the packet buffer waiting to be copied to a buffer provided\u003cbr\u003eby the local receiving application. The QUIC stack releases\u003cbr\u003ea reference to the packet buffer only after the data are copied\u003cbr\u003eto the application buffer. This design is more efficient for\u003cbr\u003elegitimate data transfers but enables an attacker to allocate a lot\u003cbr\u003emore memory than actually required by the data kept in the receiving\u003cbr\u003estream buffer.\u003cbr\u003e\u003cbr\u003eTo mitigate the vulnerability, the QUIC stack now calculates\u003cbr\u003eand monitors memory overhead for every stream. The memory overhead\u003cbr\u003efor a single stream frame is calculated as a difference between the\u003cbr\u003esize of the whole packet that carries the stream frame and the size\u003cbr\u003eof the stream frame itself. The memory overhead for a single stream\u003cbr\u003eframe is added to the total (cumulative) memory overhead QUIC stack\u003cbr\u003ekeeps for each stream. Once the cumulative memory overhead exceeds\u003cbr\u003e64kB, the QUIC stack moves the stream frame data from the packet\u003cbr\u003ebuffer to the stream buffer, starting with the next packet received.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eThe FIPS module is not affected as the QUIC implementation is outside of\u003cbr\u003ethe OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: QUIC process may keep memory for QUIC packet\nbuffer for much longer period than necessary.\n\nImpact summary: Remote peer can exploit this vulnerability\nby sending maliciously crafted packets, making the local\nQUIC stack to keep the memory for packet buffers allocated.\nThe time for which the memory remains allocated is entirely\nunder the control of the potentially malicious remote peer.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: To save copy operation from the packet buffer to the\nstream reassemble buffer the QUIC stack leaves the stream data\non the packet buffer waiting to be copied to a buffer provided\nby the local receiving application. The QUIC stack releases\na reference to the packet buffer only after the data are copied\nto the application buffer. This design is more efficient for\nlegitimate data transfers but enables an attacker to allocate a lot\nmore memory than actually required by the data kept in the receiving\nstream buffer.\n\nTo mitigate the vulnerability, the QUIC stack now calculates\nand monitors memory overhead for every stream. The memory overhead\nfor a single stream frame is calculated as a difference between the\nsize of the whole packet that carries the stream frame and the size\nof the stream frame itself. The memory overhead for a single stream\nframe is added to the total (cumulative) memory overhead QUIC stack\nkeeps for each stream. Once the cumulative memory overhead exceeds\n64kB, the QUIC stack moves the stream frame data from the packet\nbuffer to the stream buffer, starting with the next packet received.\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:16.134Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/1f643b8bc735487b500a1f68a7fb3a22d5e38e23"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/7127fb10888b49711c63128a09e524c0d2d5d0b2"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/279e7ee1392af98785746788168749491c74bd53"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/3ea6213e050e938ecbbf8c4eff32bec2736780eb"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "QUIC STREAM Fragment Metadata DoS",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-54873",
"datePublished": "2026-09-29T15:32:16.134Z",
"dateReserved": "2026-06-16T10:18:08.635Z",
"dateUpdated": "2026-09-30T20:11:09.162Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-34182 (GCVE-0-2026-34182)
Vulnerability from cvelistv5
Published
2026-06-09 16:03
Modified
2026-06-10 15:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-354 - Improper Validation of Integrity Check Value
Summary
Issue Summary: Cryptographic Message Services (CMS) processing fails to perform
sufficient input validation on the cipher and tag length fields of
AuthEnvelopedData containers, leading to various potential compromises.
Impact Summary: Attackers making use of these vulnerabilities may achieve
key-equivalent functionality for a given CMS recipient and/or bypass integrity
validation for a given message.
In one use case, an attacker may send a CMS message containing
AuthEnvelopedData with the cipher specified as a non-AEAD cipher. OpenSSL
erroneously allows this selection, and attempts to decrypt and validate the
message.
An on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData
addressed to the victim can re-emit it with the recipientInfos set left
byte-for-byte intact, so the victim's private key still unwraps the genuine CEK
(the content-encryption key), but with the inner OID rewritten to AES-256-OFB
(Output Feedback Mode, an unauthenticated keystream mode) and with an
attacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the
real CEK, never consults the MAC field, and CMS_decrypt() returns success.
If the application under attack responds to the attacker with any indicator
showing success or failure of the decryption effort, it is possible for the
attacker to use this as an oracle to obtain key equivalent functionality for the
CEK used for the chosen recipient of the message.
In another use case, an attacker can reduce the tag length of the chosen AEAD
cipher for a given AuthEnvelopedData container to be a single byte long,
allowing an attacker to brute force CMS decryption, producing an integrity
bypass for applications that trust CMS_decrypt() to reject modified content.
The FIPS modules are not affected by this issue.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-34182",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-10T15:58:17.905043Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T15:58:52.695Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.1",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.3",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.7",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.6",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.21",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Asim Viladi Oglu Manizada"
},
{
"lang": "en",
"type": "reporter",
"value": "Alex Gaynor (Anthropic)"
},
{
"lang": "en",
"type": "reporter",
"value": "Ying Dong"
},
{
"lang": "en",
"type": "reporter",
"value": "Haiyang Huang"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Neil Horman"
}
],
"datePublic": "2026-06-09T14:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue Summary: Cryptographic Message Services (CMS) processing fails to perform\u003cbr\u003esufficient input validation on the cipher and tag length fields of\u003cbr\u003eAuthEnvelopedData containers, leading to various potential compromises.\u003cbr\u003e\u003cbr\u003eImpact Summary: Attackers making use of these vulnerabilities may achieve\u003cbr\u003ekey-equivalent functionality for a given CMS recipient and/or bypass integrity\u003cbr\u003evalidation for a given message.\u003cbr\u003e\u003cbr\u003eIn one use case, an attacker may send a CMS message containing\u003cbr\u003eAuthEnvelopedData with the cipher specified as a non-AEAD cipher. OpenSSL\u003cbr\u003eerroneously allows this selection, and attempts to decrypt and validate the\u003cbr\u003emessage.\u003cbr\u003e\u003cbr\u003eAn on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData\u003cbr\u003eaddressed to the victim can re-emit it with the recipientInfos set left\u003cbr\u003ebyte-for-byte intact, so the victim\u0027s private key still unwraps the genuine CEK\u003cbr\u003e(the content-encryption key), but with the inner OID rewritten to AES-256-OFB\u003cbr\u003e(Output Feedback Mode, an unauthenticated keystream mode) and with an\u003cbr\u003eattacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the\u003cbr\u003ereal CEK, never consults the MAC field, and CMS_decrypt() returns success.\u003cbr\u003e\u003cbr\u003eIf the application under attack responds to the attacker with any indicator\u003cbr\u003eshowing success or failure of the decryption effort, it is possible for the\u003cbr\u003eattacker to use this as an oracle to obtain key equivalent functionality for the\u003cbr\u003eCEK used for the chosen recipient of the message.\u003cbr\u003e\u003cbr\u003eIn another use case, an attacker can reduce the tag length of the chosen AEAD\u003cbr\u003ecipher for a given AuthEnvelopedData container to be a single byte long,\u003cbr\u003eallowing an attacker to brute force CMS decryption, producing an integrity\u003cbr\u003ebypass for applications that trust CMS_decrypt() to reject modified content.\u003cbr\u003e\u003cbr\u003eThe FIPS modules are not affected by this issue."
}
],
"value": "Issue Summary: Cryptographic Message Services (CMS) processing fails to perform\nsufficient input validation on the cipher and tag length fields of\nAuthEnvelopedData containers, leading to various potential compromises.\n\nImpact Summary: Attackers making use of these vulnerabilities may achieve\nkey-equivalent functionality for a given CMS recipient and/or bypass integrity\nvalidation for a given message.\n\nIn one use case, an attacker may send a CMS message containing\nAuthEnvelopedData with the cipher specified as a non-AEAD cipher. OpenSSL\nerroneously allows this selection, and attempts to decrypt and validate the\nmessage.\n\nAn on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData\naddressed to the victim can re-emit it with the recipientInfos set left\nbyte-for-byte intact, so the victim\u0027s private key still unwraps the genuine CEK\n(the content-encryption key), but with the inner OID rewritten to AES-256-OFB\n(Output Feedback Mode, an unauthenticated keystream mode) and with an\nattacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the\nreal CEK, never consults the MAC field, and CMS_decrypt() returns success.\n\nIf the application under attack responds to the attacker with any indicator\nshowing success or failure of the decryption effort, it is possible for the\nattacker to use this as an oracle to obtain key equivalent functionality for the\nCEK used for the chosen recipient of the message.\n\nIn another use case, an attacker can reduce the tag length of the chosen AEAD\ncipher for a given AuthEnvelopedData container to be a single byte long,\nallowing an attacker to brute force CMS decryption, producing an integrity\nbypass for applications that trust CMS_decrypt() to reject modified content.\n\nThe FIPS modules are not affected by this issue."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Moderate"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-354",
"description": "CWE-354 Improper Validation of Integrity Check Value",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T07:47:54.994Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260609.txt"
},
{
"name": "4.0.1 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/9fd97f8cfdc2c0be214998de3b2b55c8edf6c7ac"
},
{
"name": "3.6.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/439ed7d2c0962ce964482727264668bf277c333f"
},
{
"name": "3.5.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/7947e6a81eb8776802f159fb6762cb7fcf7e34c7"
},
{
"name": "3.4.6 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/d2ca86bcd43e4f17d899f347101766b6107676e0"
},
{
"name": "3.0.21 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/03c1f4d45fb963aee7d5833390c507cd290182bc"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "CMS AuthEnvelopedData Processing May Accept Forged Messages",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-34182",
"datePublished": "2026-06-09T16:03:22.848Z",
"dateReserved": "2026-03-26T09:29:36.013Z",
"dateUpdated": "2026-06-10T15:58:52.695Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-14457 (GCVE-0-2026-14457)
Vulnerability from cvelistv5
Published
2026-08-25 12:58
Modified
2026-08-25 14:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs)
enabled, and only the private key (with no associated certificate) configured locally,
a NULL pointer dereference may occur when the remote peer solicits raw public keys and
also sends the typically omitted "signature_algorithms_cert" TLS extension.
Impact summary: The impact is limited to a possible Denial of Service as a result of
an application abort, no data disclosure or remote command execution are possible.
CWE: CWE-476: NULL Pointer Dereference
Description: While a passing comment in sample code in the documentation suggests
that key-only RPK configurations are supported, the best-practice RPK configuration
is to always configure a corresponding certificate (possibly self-signed or
signed by any convenient CA).
When the private key is configured along with a matching certificate, the
"signature_algorithms_cert" extension is handled reliably even without the
fix, and peer clients or servers that don't support raw public keys may be
able to complete a TLS connection by pinning or verifying the corresponding
certificate or its public key.
Deployments that prefer to configure just a private key with no certificate
need to upgrade to an updated release as noted below.
FIPS impact: no
No FIPS modules are affected by this issue, as the SSL protocol implementation
is outside the OpenSSL FIPS module boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-14457",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T14:13:25.034178Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T14:13:27.811Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.2",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.4",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.8",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.7",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Filipe Casal (Trail of Bits)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Viktor Dukhovni"
}
],
"datePublic": "2026-08-25T11:36:16.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs)\u003cbr\u003eenabled, and only the private key (with no associated certificate) configured locally,\u003cbr\u003ea NULL pointer dereference may occur when the remote peer solicits raw public keys and\u003cbr\u003ealso sends the typically omitted \"signature_algorithms_cert\" TLS extension.\u003cbr\u003e\u003cbr\u003eImpact summary: The impact is limited to a possible Denial of Service as a result of\u003cbr\u003ean application abort, no data disclosure or remote command execution are possible.\u003cbr\u003e\u003cbr\u003eCWE: CWE-476: NULL Pointer Dereference\u003cbr\u003e\u003cbr\u003eDescription: While a passing comment in sample code in the documentation suggests\u003cbr\u003ethat key-only RPK configurations are supported, the best-practice RPK configuration\u003cbr\u003eis to always configure a corresponding certificate (possibly self-signed or\u003cbr\u003esigned by any convenient CA).\u003cbr\u003e\u003cbr\u003eWhen the private key is configured along with a matching certificate, the\u003cbr\u003e\"signature_algorithms_cert\" extension is handled reliably even without the\u003cbr\u003efix, and peer clients or servers that don\u0027t support raw public keys may be\u003cbr\u003eable to complete a TLS connection by pinning or verifying the corresponding\u003cbr\u003ecertificate or its public key.\u003cbr\u003e\u003cbr\u003eDeployments that prefer to configure just a private key with no certificate\u003cbr\u003eneed to upgrade to an updated release as noted below.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003e\u003cbr\u003eNo FIPS modules are affected by this issue, as the SSL protocol implementation\u003cbr\u003eis outside the OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs)\nenabled, and only the private key (with no associated certificate) configured locally,\na NULL pointer dereference may occur when the remote peer solicits raw public keys and\nalso sends the typically omitted \"signature_algorithms_cert\" TLS extension.\n\nImpact summary: The impact is limited to a possible Denial of Service as a result of\nan application abort, no data disclosure or remote command execution are possible.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: While a passing comment in sample code in the documentation suggests\nthat key-only RPK configurations are supported, the best-practice RPK configuration\nis to always configure a corresponding certificate (possibly self-signed or\nsigned by any convenient CA).\n\nWhen the private key is configured along with a matching certificate, the\n\"signature_algorithms_cert\" extension is handled reliably even without the\nfix, and peer clients or servers that don\u0027t support raw public keys may be\nable to complete a TLS connection by pinning or verifying the corresponding\ncertificate or its public key.\n\nDeployments that prefer to configure just a private key with no certificate\nneed to upgrade to an updated release as noted below.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue, as the SSL protocol implementation\nis outside the OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T12:58:29.349Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260825.txt"
},
{
"name": "4.0.2 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/dad836b071da6579510c968615848ba03cac593b"
},
{
"name": "3.6.4 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/581aaa0f0a35d214740f0fe1f5283ec41f1212e1"
},
{
"name": "3.5.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/d0af20478688a6aa2f59d61caa3f82136b181d7f"
},
{
"name": "3.4.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/1e8c398db67404babd3e5af999bb6bd86f720c76"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "RPK Server Signature Algorithm Selection Can Dereference a Missing Certificate",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-14457",
"datePublished": "2026-08-25T12:58:29.349Z",
"dateReserved": "2026-07-02T08:37:07.046Z",
"dateUpdated": "2026-08-25T14:13:27.811Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-63073 (GCVE-0-2026-63073)
Vulnerability from cvelistv5
Published
2026-08-25 12:59
Modified
2026-08-31 19:12
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-134 - Use of Externally-Controlled Format String
Summary
Issue summary: OpenSSL CMP response validation passed an unexpected response
sender distinguished name directly as the format string to `ERR_raise_data()`.
Impact summary: A malicious or intercepted CMP endpoint can crash a CMP client
that enforces an expected sender or uses a pinned server certificate whose
subject becomes the default expected sender.
CWE: CWE-134 (Use of Externally-Controlled Format String)
Description: When validating a received CMP message, ossl_cmp_msg_check_update()
converts the peer-supplied sender distinguished name with X509_NAME_oneline()
and passes it directly as the format argument to ERR_raise_data(). Percent
characters survive the conversion, so a sender DN such as "CN=%s%n" reaches
BIO_vsnprintf() as an attacker-controlled format string with no matching variadic
arguments. This path is only reached when the caller configures an expected
sender or pins a server certificate, which is the normal configuration for a
CMP client validating server responses.
Since the attacker controls the format string but none of the variadic
arguments, such specifiers as %s and %n dereference or write through unrelated
stack contents and crash the client. The reliable consequence is a denial of
service, when the response comes from a malicious or intercepted CMP endpoint.
There is no controlled memory write, arbitrary-address read, or reliable path
to remote code execution.
FIPS impact: no
No FIPS modules are affected by this issue, as the CMP protocol
implementation is outside the OpenSSL FIPS module boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-63073",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-31T19:12:48.434586Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T19:12:54.136Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.2",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.4",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.8",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.7",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Filipe Casal (Trail of Bits)"
},
{
"lang": "en",
"type": "reporter",
"value": "Brandon Luo"
},
{
"lang": "en",
"type": "reporter",
"value": "TrendAI Zero Day Initiative"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Filipe Casal (Trail of Bits)"
}
],
"datePublic": "2026-08-25T11:36:16.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: OpenSSL CMP response validation passed an unexpected response\u003cbr\u003esender distinguished name directly as the format string to `ERR_raise_data()`.\u003cbr\u003e\u003cbr\u003eImpact summary: A malicious or intercepted CMP endpoint can crash a CMP client\u003cbr\u003ethat enforces an expected sender or uses a pinned server certificate whose\u003cbr\u003esubject becomes the default expected sender.\u003cbr\u003e\u003cbr\u003eCWE: CWE-134 (Use of Externally-Controlled Format String)\u003cbr\u003e\u003cbr\u003eDescription: When validating a received CMP message, ossl_cmp_msg_check_update()\u003cbr\u003econverts the peer-supplied sender distinguished name with X509_NAME_oneline()\u003cbr\u003eand passes it directly as the format argument to ERR_raise_data(). Percent\u003cbr\u003echaracters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches\u003cbr\u003eBIO_vsnprintf() as an attacker-controlled format string with no matching variadic\u003cbr\u003earguments. This path is only reached when the caller configures an expected\u003cbr\u003esender or pins a server certificate, which is the normal configuration for a\u003cbr\u003eCMP client validating server responses.\u003cbr\u003e\u003cbr\u003eSince the attacker controls the format string but none of the variadic\u003cbr\u003earguments, such specifiers as %s and %n dereference or write through unrelated\u003cbr\u003estack contents and crash the client. The reliable consequence is a denial of\u003cbr\u003eservice, when the response comes from a malicious or intercepted CMP endpoint.\u003cbr\u003eThere is no controlled memory write, arbitrary-address read, or reliable path\u003cbr\u003eto remote code execution.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003e\u003cbr\u003eNo FIPS modules are affected by this issue, as the CMP protocol\u003cbr\u003eimplementation is outside the OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: OpenSSL CMP response validation passed an unexpected response\nsender distinguished name directly as the format string to `ERR_raise_data()`.\n\nImpact summary: A malicious or intercepted CMP endpoint can crash a CMP client\nthat enforces an expected sender or uses a pinned server certificate whose\nsubject becomes the default expected sender.\n\nCWE: CWE-134 (Use of Externally-Controlled Format String)\n\nDescription: When validating a received CMP message, ossl_cmp_msg_check_update()\nconverts the peer-supplied sender distinguished name with X509_NAME_oneline()\nand passes it directly as the format argument to ERR_raise_data(). Percent\ncharacters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches\nBIO_vsnprintf() as an attacker-controlled format string with no matching variadic\narguments. This path is only reached when the caller configures an expected\nsender or pins a server certificate, which is the normal configuration for a\nCMP client validating server responses.\n\nSince the attacker controls the format string but none of the variadic\narguments, such specifiers as %s and %n dereference or write through unrelated\nstack contents and crash the client. The reliable consequence is a denial of\nservice, when the response comes from a malicious or intercepted CMP endpoint.\nThere is no controlled memory write, arbitrary-address read, or reliable path\nto remote code execution.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue, as the CMP protocol\nimplementation is outside the OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-134",
"description": "Use of Externally-Controlled Format String",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T12:59:43.356Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260825.txt"
},
{
"name": "4.0.2 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/7eb2e3ec9d1d4f35c8022fccd4b03398b3f33e21"
},
{
"name": "3.6.4 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/6a0acc072b4d37a7cac1252a29c1ce1f00c5ec29"
},
{
"name": "3.5.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/0cc20b322639919aa423e90799d9a57c3b4b76ca"
},
{
"name": "3.4.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/a7e5a6eea8fd3ccca6b6fbba031a5fbf8a3d93b4"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Untrusted Sender DN Used as Format String in CMP Response Validation",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-63073",
"datePublished": "2026-08-25T12:59:43.356Z",
"dateReserved": "2026-07-15T13:10:26.188Z",
"dateUpdated": "2026-08-31T19:12:54.136Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-63074 (GCVE-0-2026-63074)
Vulnerability from cvelistv5
Published
2026-08-25 12:59
Modified
2026-08-25 14:36
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches
additional certificates (extraCerts) sent in a CMP message, but never expunges
them (for instance if they are invalid). If a server reuses an OSSL_CMP_CTX
frequently, this cache of extraCerts may grow unboundedly, and a malicious
client may flood a CMP server with requests driving this growth.
Impact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX
for the lifetime of a server process may observe unbounded memory growth in the
event a malicious client repeatedly sends requests containing unique extra
certificates, which may lead to OOM conditions.
CWE: CWE-770: Allocation of Resources Without Limits or Throttling
Description: If a remote user sends CMP messages to a server with a list of
extraCerts and the message is rejected, the extraCerts from the message remains
in the server contexts untrusted certificate stack. This exposes servers with
long lived ctx objects to Denial of Service attacks in which an attacker sends
messages intending to be rejected with a large list of additional certificates
repeatedly, forcing the server to store them indefinitely.
The issue was fixed by removing the added extra certs if the message is
rejected, using the same method as when the context is configured to not do
caching at all.
FIPS impact: no
As the CMP code lives outside the FIPS module boundary, no FIPS
modules are affected by this CVE.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-63074",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T14:36:10.702053Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T14:36:13.170Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.2",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.4",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.8",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.7",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.22",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Pav\u043el \u017d\u00e1\u010dik (Red Hat)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Neil Horman"
}
],
"datePublic": "2026-08-25T11:36:16.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches\u003cbr\u003eadditional certificates (extraCerts) sent in a CMP message, but never expunges\u003cbr\u003ethem (for instance if they are invalid). If a server reuses an OSSL_CMP_CTX\u003cbr\u003efrequently, this cache of extraCerts may grow unboundedly, and a malicious\u003cbr\u003eclient may flood a CMP server with requests driving this growth.\u003cbr\u003e\u003cbr\u003eImpact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX\u003cbr\u003efor the lifetime of a server process may observe unbounded memory growth in the\u003cbr\u003eevent a malicious client repeatedly sends requests containing unique extra\u003cbr\u003ecertificates, which may lead to OOM conditions.\u003cbr\u003e\u003cbr\u003eCWE: CWE-770: Allocation of Resources Without Limits or Throttling\u003cbr\u003e\u003cbr\u003eDescription: If a remote user sends CMP messages to a server with a list of\u003cbr\u003eextraCerts and the message is rejected, the extraCerts from the message remains\u003cbr\u003ein the server contexts untrusted certificate stack. This exposes servers with\u003cbr\u003elong lived ctx objects to Denial of Service attacks in which an attacker sends\u003cbr\u003emessages intending to be rejected with a large list of additional certificates\u003cbr\u003erepeatedly, forcing the server to store them indefinitely.\u003cbr\u003e \u003cbr\u003eThe issue was fixed by removing the added extra certs if the message is\u003cbr\u003erejected, using the same method as when the context is configured to not do\u003cbr\u003ecaching at all.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eAs the CMP code lives outside the FIPS module boundary, no FIPS\u003cbr\u003emodules are affected by this CVE."
}
],
"value": "Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches\nadditional certificates (extraCerts) sent in a CMP message, but never expunges\nthem (for instance if they are invalid). If a server reuses an OSSL_CMP_CTX\nfrequently, this cache of extraCerts may grow unboundedly, and a malicious\nclient may flood a CMP server with requests driving this growth.\n\nImpact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX\nfor the lifetime of a server process may observe unbounded memory growth in the\nevent a malicious client repeatedly sends requests containing unique extra\ncertificates, which may lead to OOM conditions.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: If a remote user sends CMP messages to a server with a list of\nextraCerts and the message is rejected, the extraCerts from the message remains\nin the server contexts untrusted certificate stack. This exposes servers with\nlong lived ctx objects to Denial of Service attacks in which an attacker sends\nmessages intending to be rejected with a large list of additional certificates\nrepeatedly, forcing the server to store them indefinitely.\n \nThe issue was fixed by removing the added extra certs if the message is\nrejected, using the same method as when the context is configured to not do\ncaching at all.\n\nFIPS impact: no\nAs the CMP code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T12:59:58.278Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260825.txt"
},
{
"name": "4.0.2 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/74ae7f6df47a5767c1010b88c47507dfc5b32c46"
},
{
"name": "3.6.4 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/01e567978a55fba18142a230380c31296049fae7"
},
{
"name": "3.5.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/75360af9650d4e0c82ba0050c5c9912cd79e54af"
},
{
"name": "3.4.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/f636f9ca0fa1bae5b42f9e787f025c96fb09c43a"
},
{
"name": "3.0.22 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/21a5d9658b0c66daace60e10ea18ff32a448de9f"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "CMP Indefinite Cache Growth of ExtraCerts",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-63074",
"datePublished": "2026-08-25T12:59:58.278Z",
"dateReserved": "2026-07-15T13:10:26.188Z",
"dateUpdated": "2026-08-25T14:36:13.170Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-18798 (GCVE-0-2026-18798)
Vulnerability from cvelistv5
Published
2026-08-25 12:59
Modified
2026-08-25 14:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-415 - Double Free
Summary
Issue summary: QUIC server may double free QRX (QUIC record layer RX) object
when channel creation fails for initial packet.
Impact summary: Double free leads to heap corruption, which typically results in
termination of QUIC server process, leading to Denial of Service. There is so
far no evidence that this double free is exploitable for remote code execution,
thus it is considered highly improbable.
CWE: CWE-415: Double Free
Description: In order to validate initial packet, OpenSSL QUIC stack default
packet handler (port_default_packet_handler()) creates a so-called QRX object.
If the initial packet validates successfully with QRX object, the default packet
handler proceeds to channel (connection object) creation. The QRX object used
for packet validation is passed to port_bind_channel(), so it becomes part of
the newly created connection. If port_bind_channel() fails, then it also frees
the QRX object. Once port_bind_channel() returns, the port_default_packet_handler()
detects the failure and proceeds to the error branch, where the same QRX object is
freed for the second time.
The failure in port_bind_channel() function can be induced with a relatively
low effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet
carries DCID (destination connection ID) which is shorter than 8 bytes, then
port_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid()
detects that the DCID has invalid length.
FIPS impact: no
The FIPS module is not affected, as the QUIC implementation is outside of
the OpenSSL FIPS module boundary.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-18798",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T14:15:00.501697Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T14:15:04.879Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.2",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.4",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.8",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Fuzz0x (ZKSC Institute of Security Research)"
},
{
"lang": "en",
"type": "reporter",
"value": "Emilio Galle"
},
{
"lang": "en",
"type": "reporter",
"value": "Feng Xue (ThreatBoon)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Alexandr Nedvedicky"
}
],
"datePublic": "2026-08-25T11:36:16.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: QUIC server may double free QRX (QUIC record layer RX) object\u003cbr\u003ewhen channel creation fails for initial packet.\u003cbr\u003e\u003cbr\u003eImpact summary: Double free leads to heap corruption, which typically results in \u003cbr\u003etermination of QUIC server process, leading to Denial of Service. There is so\u003cbr\u003efar no evidence that this double free is exploitable for remote code execution,\u003cbr\u003ethus it is considered highly improbable.\u003cbr\u003e\u003cbr\u003eCWE: CWE-415: Double Free\u003cbr\u003e\u003cbr\u003eDescription: In order to validate initial packet, OpenSSL QUIC stack default\u003cbr\u003epacket handler (port_default_packet_handler()) creates a so-called QRX object.\u003cbr\u003eIf the initial packet validates successfully with QRX object, the default packet\u003cbr\u003ehandler proceeds to channel (connection object) creation. The QRX object used\u003cbr\u003efor packet validation is passed to port_bind_channel(), so it becomes part of\u003cbr\u003ethe newly created connection. If port_bind_channel() fails, then it also frees\u003cbr\u003ethe QRX object. Once port_bind_channel() returns, the port_default_packet_handler()\u003cbr\u003edetects the failure and proceeds to the error branch, where the same QRX object is\u003cbr\u003efreed for the second time.\u003cbr\u003e\u003cbr\u003eThe failure in port_bind_channel() function can be induced with a relatively\u003cbr\u003elow effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet\u003cbr\u003ecarries DCID (destination connection ID) which is shorter than 8 bytes, then\u003cbr\u003eport_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid()\u003cbr\u003edetects that the DCID has invalid length.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eThe FIPS module is not affected, as the QUIC implementation is outside of\u003cbr\u003ethe OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: QUIC server may double free QRX (QUIC record layer RX) object\nwhen channel creation fails for initial packet.\n\nImpact summary: Double free leads to heap corruption, which typically results in \ntermination of QUIC server process, leading to Denial of Service. There is so\nfar no evidence that this double free is exploitable for remote code execution,\nthus it is considered highly improbable.\n\nCWE: CWE-415: Double Free\n\nDescription: In order to validate initial packet, OpenSSL QUIC stack default\npacket handler (port_default_packet_handler()) creates a so-called QRX object.\nIf the initial packet validates successfully with QRX object, the default packet\nhandler proceeds to channel (connection object) creation. The QRX object used\nfor packet validation is passed to port_bind_channel(), so it becomes part of\nthe newly created connection. If port_bind_channel() fails, then it also frees\nthe QRX object. Once port_bind_channel() returns, the port_default_packet_handler()\ndetects the failure and proceeds to the error branch, where the same QRX object is\nfreed for the second time.\n\nThe failure in port_bind_channel() function can be induced with a relatively\nlow effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet\ncarries DCID (destination connection ID) which is shorter than 8 bytes, then\nport_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid()\ndetects that the DCID has invalid length.\n\nFIPS impact: no\nThe FIPS module is not affected, as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Moderate"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-415",
"description": "CWE-415 Double Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T12:59:04.715Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260825.txt"
},
{
"name": "4.0.2 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/a14a1deac403522fbeafabcb198503cf6caa7dc4"
},
{
"name": "3.6.4 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/70cebd74d3592f5272945501b58a60374c4e13af"
},
{
"name": "3.5.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/967582d5037f01a26b6d19beae19af62a1b15c3c"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "QUIC Server May Trigger Double Free When Processing INITIAL Packet",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-18798",
"datePublished": "2026-08-25T12:59:04.715Z",
"dateReserved": "2026-08-04T09:45:25.371Z",
"dateUpdated": "2026-08-25T14:15:04.879Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56132 (GCVE-0-2026-56132)
Vulnerability from cvelistv5
Published
2026-06-19 03:00
Modified
2026-06-22 14:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-821 - Incorrect Synchronization
Summary
In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56132",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T14:59:42.500548Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T14:59:54.057Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-821",
"description": "CWE-821 Incorrect Synchronization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-19T03:00:42.975Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1272"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56132",
"datePublished": "2026-06-19T03:00:42.975Z",
"dateReserved": "2026-06-19T03:00:42.577Z",
"dateUpdated": "2026-06-22T14:59:54.057Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42767 (GCVE-0-2026-42767)
Vulnerability from cvelistv5
Published
2026-06-09 16:03
Modified
2026-06-10 07:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
Issue summary: An attacker-controlled CMP (Certificate Management Protocol)
server could trigger a NULL pointer dereference in a CMP client application.
Impact summary: A NULL pointer dereference causes a crash of the
application and a Denial of Service.
An attacker controlling a CMP server (or acting as a man-in-the-middle) could
craft a CMP response containing a CRMF (Certificate Request Message Format)
CertRepMessage with an EncryptedValue structure where the symmAlg field
has an algorithm OID but no parameters field. When the OpenSSL CMP client
processes this response, the NULL dereference occurs, causing a crash of
the CMP client.
Applications that process untrusted CMP/CRMF messages may be affected.
The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this
issue, as the affected code is outside the OpenSSL FIPS module boundary.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-42767",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-09T19:44:35.594012Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-09T19:45:04.422Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.1",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.3",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.7",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.6",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.21",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Zhanpeng Liu (Tencent Xuanwu Lab)"
},
{
"lang": "en",
"type": "reporter",
"value": "Guannan Wang (Tencent Xuanwu Lab)"
},
{
"lang": "en",
"type": "reporter",
"value": "Guancheng Li (Tencent Xuanwu Lab)"
},
{
"lang": "en",
"type": "reporter",
"value": "Bhabani Sankar Das"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Igor Ustinov"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Tom\u00e1\u0161 Mr\u00e1z"
}
],
"datePublic": "2026-06-09T14:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: An attacker-controlled CMP (Certificate Management Protocol)\u003cbr\u003eserver could trigger a NULL pointer dereference in a CMP client application.\u003cbr\u003e\u003cbr\u003eImpact summary: A NULL pointer dereference causes a crash of the\u003cbr\u003eapplication and a Denial of Service.\u003cbr\u003e\u003cbr\u003eAn attacker controlling a CMP server (or acting as a man-in-the-middle) could\u003cbr\u003ecraft a CMP response containing a CRMF (Certificate Request Message Format)\u003cbr\u003eCertRepMessage with an EncryptedValue structure where the symmAlg field\u003cbr\u003ehas an algorithm OID but no parameters field. When the OpenSSL CMP client\u003cbr\u003eprocesses this response, the NULL dereference occurs, causing a crash of\u003cbr\u003ethe CMP client.\u003cbr\u003e\u003cbr\u003eApplications that process untrusted CMP/CRMF messages may be affected.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\u003cbr\u003eissue, as the affected code is outside the OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: An attacker-controlled CMP (Certificate Management Protocol)\nserver could trigger a NULL pointer dereference in a CMP client application.\n\nImpact summary: A NULL pointer dereference causes a crash of the\napplication and a Denial of Service.\n\nAn attacker controlling a CMP server (or acting as a man-in-the-middle) could\ncraft a CMP response containing a CRMF (Certificate Request Message Format)\nCertRepMessage with an EncryptedValue structure where the symmAlg field\nhas an algorithm OID but no parameters field. When the OpenSSL CMP client\nprocesses this response, the NULL dereference occurs, causing a crash of\nthe CMP client.\n\nApplications that process untrusted CMP/CRMF messages may be affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T07:48:03.405Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260609.txt"
},
{
"name": "4.0.1 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/b90ff3b1bd33b1c18e6a09936d097c2eddef8873"
},
{
"name": "3.6.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/e6f912907fc2ec82a0fd07aae55172c5e5e3d90d"
},
{
"name": "3.5.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/810b722f772652ad48042bcc7ab07e3414b11d0f"
},
{
"name": "3.4.6 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/665d5254083affde9982efca7c41dd01cacc8774"
},
{
"name": "3.0.21 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/61a86a8cd73546c9fea916f3d304c1293e05c046"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "NULL Pointer Dereference in CRMF EncryptedValue Decryption",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-42767",
"datePublished": "2026-06-09T16:03:27.435Z",
"dateReserved": "2026-04-29T09:22:27.968Z",
"dateUpdated": "2026-06-10T07:48:03.405Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-63072 (GCVE-0-2026-63072)
Vulnerability from cvelistv5
Published
2026-08-25 12:59
Modified
2026-08-25 14:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-787 - Out-of-bounds Write
Summary
Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based
on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive
can write and cleanse more bytes than that query reports, causing an 8-byte
out-of-bounds heap write.
Impact summary: An attacker who supplies a crafted CMS message can trigger a
deterministic 8-byte out-of-bounds heap write when the victim decrypts it
with CMS_decrypt(), corrupting the heap and typically resulting in a Denial
of Service.
CWE: CWE-787: Out-of-bounds Write
Description: The key-wrap OID is potentially attacker-controlled on the wire.
CMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.
An attacker can take a legitimate message and change a single OID byte to
select the padded variant while leaving the message otherwise valid. Since
the unwrap key is derived from the recipient's private operation (ECDH key
agreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot
pass, and the decryption fails with integrity failure.
The write is a fixed-size (8-byte), fixed-value (zero) heap overflow
immediately past the allocation, requires no special configuration, and is
reachable from the public CMS_decrypt() function. The consequence is
a heap corruption leading to a Denial of Service. The fix in the CMS code
sizes the unwrap output buffer for the worst case so a failed unwrap cannot
write past the allocation.
FIPS impact: no
As the CMS code lives outside the FIPS module boundary, no FIPS
modules are affected by this CVE.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-63072",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T14:29:50.344129Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T14:29:55.378Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.2",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.4",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.8",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.7",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.22",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
},
{
"lessThan": "1.1.1zi",
"status": "affected",
"version": "1.1.1",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Bhabani Sankar Das"
},
{
"lang": "en",
"type": "reporter",
"value": "Filipe Casal(Trail of Bits)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Kubec"
}
],
"datePublic": "2026-08-25T11:36:16.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\u003cbr\u003eon querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\u003cbr\u003ecan write and cleanse more bytes than that query reports, causing an 8-byte\u003cbr\u003eout-of-bounds heap write.\u003cbr\u003e\u003cbr\u003eImpact summary: An attacker who supplies a crafted CMS message can trigger a\u003cbr\u003edeterministic 8-byte out-of-bounds heap write when the victim decrypts it\u003cbr\u003ewith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\u003cbr\u003eof Service.\u003cbr\u003e\u003cbr\u003eCWE: CWE-787: Out-of-bounds Write\u003cbr\u003e\u003cbr\u003eDescription: The key-wrap OID is potentially attacker-controlled on the wire.\u003cbr\u003eCMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.\u003cbr\u003eAn attacker can take a legitimate message and change a single OID byte to\u003cbr\u003eselect the padded variant while leaving the message otherwise valid. Since\u003cbr\u003ethe unwrap key is derived from the recipient\u0027s private operation (ECDH key\u003cbr\u003eagreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot\u003cbr\u003epass, and the decryption fails with integrity failure.\u003cbr\u003e\u003cbr\u003eThe write is a fixed-size (8-byte), fixed-value (zero) heap overflow\u003cbr\u003eimmediately past the allocation, requires no special configuration, and is\u003cbr\u003ereachable from the public CMS_decrypt() function. The consequence is\u003cbr\u003ea heap corruption leading to a Denial of Service. The fix in the CMS code\u003cbr\u003esizes the unwrap output buffer for the worst case so a failed unwrap cannot\u003cbr\u003ewrite past the allocation.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003e\u003cbr\u003eAs the CMS code lives outside the FIPS module boundary, no FIPS\u003cbr\u003emodules are affected by this CVE."
}
],
"value": "Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\non querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\ncan write and cleanse more bytes than that query reports, causing an 8-byte\nout-of-bounds heap write.\n\nImpact summary: An attacker who supplies a crafted CMS message can trigger a\ndeterministic 8-byte out-of-bounds heap write when the victim decrypts it\nwith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\nof Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: The key-wrap OID is potentially attacker-controlled on the wire.\nCMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.\nAn attacker can take a legitimate message and change a single OID byte to\nselect the padded variant while leaving the message otherwise valid. Since\nthe unwrap key is derived from the recipient\u0027s private operation (ECDH key\nagreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot\npass, and the decryption fails with integrity failure.\n\nThe write is a fixed-size (8-byte), fixed-value (zero) heap overflow\nimmediately past the allocation, requires no special configuration, and is\nreachable from the public CMS_decrypt() function. The consequence is\na heap corruption leading to a Denial of Service. The fix in the CMS code\nsizes the unwrap output buffer for the worst case so a failed unwrap cannot\nwrite past the allocation.\n\nFIPS impact: no\n\nAs the CMS code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Moderate"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T12:59:34.428Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260825.txt"
},
{
"name": "4.0.2 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335"
},
{
"name": "3.6.4 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756"
},
{
"name": "3.5.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42"
},
{
"name": "3.4.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a"
},
{
"name": "3.0.22 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Heap Buffer Overflow in CMS Key Unwrapping",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-63072",
"datePublished": "2026-08-25T12:59:34.428Z",
"dateReserved": "2026-07-15T13:10:26.188Z",
"dateUpdated": "2026-08-25T14:29:55.378Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-34181 (GCVE-0-2026-34181)
Vulnerability from cvelistv5
Published
2026-06-09 16:03
Modified
2026-06-10 16:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-354 - Improper Validation of Integrity Check Value
Summary
Issue Summary: The PKCS#12 file processing fails to perform sufficient input
validation for files that use Password-Based Message Authentication Code 1
(PBMAC1) integrity mechanism allowing a certificate and private key forgery.
Impact Summary: An attacker impersonating a user can cause a service reading
PKCS#12 files to accept forged certificates and private keys with a 1 in 256
probability.
If a service accepting PKCS#12 files is using passwords for authenticating
the received files, the attacker can create unencrypted PKCS#12 files that
use PBMAC1 authentication that specifies an HMAC key of only one byte, allowing
them to craft a file that will be accepted with a 1 in 256 probability.
That would then cause the service to accept a certificate and private key
controlled by the attacker.
The FIPS modules are not affected by this issue, as the affected code is
outside the OpenSSL FIPS module boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-34181",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-10T16:01:11.685759Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T16:02:19.675Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.1",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.3",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.7",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.6",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Pavol \u017d\u00e1\u010dik (Red Hat)"
},
{
"lang": "en",
"type": "reporter",
"value": "Alex Gaynor (Anthropic)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Alicja Kario (Red Hat)"
}
],
"datePublic": "2026-06-09T14:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue Summary: The PKCS#12 file processing fails to perform sufficient input\u003cbr\u003evalidation for files that use Password-Based Message Authentication Code 1\u003cbr\u003e(PBMAC1) integrity mechanism allowing a certificate and private key forgery.\u003cbr\u003e\u003cbr\u003eImpact Summary: An attacker impersonating a user can cause a service reading\u003cbr\u003ePKCS#12 files to accept forged certificates and private keys with a 1 in 256\u003cbr\u003eprobability.\u003cbr\u003e\u003cbr\u003eIf a service accepting PKCS#12 files is using passwords for authenticating\u003cbr\u003ethe received files, the attacker can create unencrypted PKCS#12 files that\u003cbr\u003euse PBMAC1 authentication that specifies an HMAC key of only one byte, allowing\u003cbr\u003ethem to craft a file that will be accepted with a 1 in 256 probability.\u003cbr\u003eThat would then cause the service to accept a certificate and private key\u003cbr\u003econtrolled by the attacker.\u003cbr\u003e\u003cbr\u003eThe FIPS modules are not affected by this issue, as the affected code is\u003cbr\u003eoutside the OpenSSL FIPS module boundary."
}
],
"value": "Issue Summary: The PKCS#12 file processing fails to perform sufficient input\nvalidation for files that use Password-Based Message Authentication Code 1\n(PBMAC1) integrity mechanism allowing a certificate and private key forgery.\n\nImpact Summary: An attacker impersonating a user can cause a service reading\nPKCS#12 files to accept forged certificates and private keys with a 1 in 256\nprobability.\n\nIf a service accepting PKCS#12 files is using passwords for authenticating\nthe received files, the attacker can create unencrypted PKCS#12 files that\nuse PBMAC1 authentication that specifies an HMAC key of only one byte, allowing\nthem to craft a file that will be accepted with a 1 in 256 probability.\nThat would then cause the service to accept a certificate and private key\ncontrolled by the attacker.\n\nThe FIPS modules are not affected by this issue, as the affected code is\noutside the OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-354",
"description": "CWE-354 Improper Validation of Integrity Check Value",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T07:47:53.712Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260609.txt"
},
{
"name": "4.0.1 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/0300eb9ddce7a0895bf301a4b0c03a9da2313a0f"
},
{
"name": "3.6.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/ec36f2417c4ddd8cabce4b4a60a3d7a7365f2d81"
},
{
"name": "3.5.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/85dcbb3abaa4878af5c8fbbe11bce708fcf984a7"
},
{
"name": "3.4.6 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/79eb76a937e474bb7610a0a3dc57131dc8dc6610"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "PKCS#12 Files with PBMAC1 Are Accepted with Short HMAC Keys",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-34181",
"datePublished": "2026-06-09T16:03:22.065Z",
"dateReserved": "2026-03-26T09:29:36.013Z",
"dateUpdated": "2026-06-10T16:02:19.675Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-86139 (GCVE-0-2026-86139)
Vulnerability from cvelistv5
Published
2026-09-05 04:23
Modified
2026-09-08 13:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
In libxml2 before 2.15.4, xmlURIEscapeStr in uri.c has an integer overflow.
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-86139",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-08T13:04:02.900168Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-08T13:04:24.068Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libxml2",
"vendor": "xmlsoft",
"versions": [
{
"lessThan": "2.15.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.15.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In libxml2 before 2.15.4, xmlURIEscapeStr in uri.c has an integer overflow."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-05T04:23:14.686Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"
},
{
"url": "https://github.com/GNOME/libxml2/commit/8edbbdb09f24d26a2f900141fddc2b9d014f53b0"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-86139",
"datePublished": "2026-09-05T04:23:14.686Z",
"dateReserved": "2026-09-05T04:23:14.327Z",
"dateUpdated": "2026-09-08T13:04:24.068Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-9547 (GCVE-0-2026-9547)
Vulnerability from cvelistv5
Published
2026-07-03 06:18
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-297 - Improper Validation of Certificate with Host Mismatch
Summary
When a libcurl-based application performs transfers via `SCP://` or `SFTP://`
and utilizes the `CURLOPT_SSH_KEYFUNCTION` callback, it may silently accept an
untrusted server. This vulnerability occurs when a server presents a host key
type that does not match the specific key type already recorded for that host
in the `known_hosts` file. Instead of rejecting the mismatch, the callback
mechanism fails to properly enforce the restriction, allowing the connection
to succeed without warning and risking a potential man-in-the-middle attack.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.69.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-9547",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T16:47:32.456534Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T16:48:14.469Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3751712"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.69.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "0b8dbbc63c98777e4584cb9fbd71df3464008ad1",
"status": "affected",
"version": "507cf6a13db0375eadd4655b4c64710db29e9cf2",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Joshua Rogers (Aisle Research)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Joshua Rogers (Aisle Research)"
}
],
"descriptions": [
{
"lang": "en",
"value": "When a libcurl-based application performs transfers via `SCP://` or `SFTP://`\nand utilizes the `CURLOPT_SSH_KEYFUNCTION` callback, it may silently accept an\nuntrusted server. This vulnerability occurs when a server presents a host key\ntype that does not match the specific key type already recorded for that host\nin the `known_hosts` file. Instead of rejecting the mismatch, the callback\nmechanism fails to properly enforce the restriction, allowing the connection\nto succeed without warning and risking a potential man-in-the-middle attack."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-297",
"description": "Improper Validation of Certificate with Host Mismatch",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:34.802Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-9547.json"
},
{
"url": "https://curl.se/docs/CVE-2026-9547.html"
},
{
"url": "https://hackerone.com/reports/3751712"
}
],
"title": "SSH improper host validation",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.69.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "507cf6a13db0375eadd4655b4c64710db29e9cf2"
},
{
"fixed": "0b8dbbc63c98777e4584cb9fbd71df3464008ad1"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0"
]
}
],
"aliases": [
"CVE-2026-9547"
],
"credits": [
{
"name": "Joshua Rogers (Aisle Research)",
"type": "finder"
},
{
"name": "Joshua Rogers (Aisle Research)",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Improper Validation of Certificate with Host Mismatch",
"id": "CWE-297"
},
"URL": "https://curl.se/docs/CVE-2026-9547.json",
"affects": "lib",
"issue": "https://hackerone.com/reports/3751712",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-9547.html"
},
"details": "When a libcurl-based application performs transfers via `SCP://` or `SFTP://`\nand utilizes the `CURLOPT_SSH_KEYFUNCTION` callback, it may silently accept an\nuntrusted server. This vulnerability occurs when a server presents a host key\ntype that does not match the specific key type already recorded for that host\nin the `known_hosts` file. Instead of rejecting the mismatch, the callback\nmechanism fails to properly enforce the restriction, allowing the connection\nto succeed without warning and risking a potential man-in-the-middle attack.",
"id": "CURL-CVE-2026-9547",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "SSH improper host validation"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-9547",
"datePublished": "2026-07-03T06:18:44.499Z",
"dateReserved": "2026-05-26T06:45:27.665Z",
"dateUpdated": "2026-09-15T06:03:34.802Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-86140 (GCVE-0-2026-86140)
Vulnerability from cvelistv5
Published
2026-09-05 04:26
Modified
2026-09-08 18:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-121 - Stack-based Buffer Overflow
Summary
In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-86140",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-08T18:06:03.098551Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-08T18:06:15.447Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libxml2",
"vendor": "xmlsoft",
"versions": [
{
"lessThan": "2.15.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.15.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121 Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-05T04:26:13.860Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"
},
{
"url": "https://github.com/GNOME/libxml2/commit/d1686f91dbda141a752200419d35639fd6b38340"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-86140",
"datePublished": "2026-09-05T04:26:13.860Z",
"dateReserved": "2026-09-05T04:26:13.510Z",
"dateUpdated": "2026-09-08T18:06:15.447Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56410 (GCVE-0-2026-56410)
Vulnerability from cvelistv5
Published
2026-06-21 15:55
Modified
2026-06-22 15:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
xmlwf in libexpat before 2.8.2 has an integer overflow in resolveSystemId.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56410",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T15:56:48.331184Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T15:56:58.296Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "xmlwf in libexpat before 2.8.2 has an integer overflow in resolveSystemId."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-21T15:55:00.448Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1252"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56410",
"datePublished": "2026-06-21T15:55:00.448Z",
"dateReserved": "2026-06-21T15:54:59.828Z",
"dateUpdated": "2026-06-22T15:56:58.296Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-8925 (GCVE-0-2026-8925)
Vulnerability from cvelistv5
Published
2026-07-03 06:15
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-415 - Double Free
Summary
The curl logic that works with SASL authentication could end up cleaning up
the GSASL context *twice* without clearing the pointer in between, making it
`free()` the same pointer twice.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-8925",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T17:03:39.068747Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T17:04:15.411Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3735193"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "3da249e1f0716c06644ed3522a37a8bf81808012",
"status": "affected",
"version": "ab650379a8c25ca952f651476d25b4cdd77bb3fc",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Joshua Rogers (Aisle Research)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Viktor Szakats"
}
],
"descriptions": [
{
"lang": "en",
"value": "The curl logic that works with SASL authentication could end up cleaning up\nthe GSASL context *twice* without clearing the pointer in between, making it\n`free()` the same pointer twice."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-415",
"description": "Double Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:22.227Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-8925.json"
},
{
"url": "https://curl.se/docs/CVE-2026-8925.html"
},
{
"url": "https://hackerone.com/reports/3735193"
}
],
"title": "SASL double-free",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "ab650379a8c25ca952f651476d25b4cdd77bb3fc"
},
{
"fixed": "3da249e1f0716c06644ed3522a37a8bf81808012"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0"
]
}
],
"aliases": [
"CVE-2026-8925"
],
"credits": [
{
"name": "Joshua Rogers (Aisle Research)",
"type": "finder"
},
{
"name": "Viktor Szakats",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Double Free",
"id": "CWE-415"
},
"URL": "https://curl.se/docs/CVE-2026-8925.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3735193",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Medium",
"www": "https://curl.se/docs/CVE-2026-8925.html"
},
"details": "The curl logic that works with SASL authentication could end up cleaning up\nthe GSASL context *twice* without clearing the pointer in between, making it\n`free()` the same pointer twice.",
"id": "CURL-CVE-2026-8925",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "SASL double-free"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-8925",
"datePublished": "2026-07-03T06:15:25.448Z",
"dateReserved": "2026-05-19T08:11:49.032Z",
"dateUpdated": "2026-09-15T06:03:22.227Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-6732 (GCVE-0-2026-6732)
Vulnerability from cvelistv5
Published
2026-04-23 22:19
Modified
2026-08-31 11:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Summary
A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML Schema Definition (XSD) validated document that includes an internal entity reference. An attacker could exploit this by providing a malicious document, leading to a type confusion error that causes the application to crash. This results in a denial of service (DoS), making the affected system or application unavailable.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Hardened Images |
Unaffected: 2.15.3-0.1.hum1 < * cpe:/a:redhat:hummingbird:1 |
||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-6732",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-24T10:53:00.163293Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-24T10:54:21.129Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "libxml2-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2.15.3-0.1.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "unaffected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unaffected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unaffected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "unaffected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "unaffected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_core_services:1"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat JBoss Core Services",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "unaffected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "unaffected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Ariel Schon for reporting this issue."
}
],
"datePublic": "2026-04-16T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML Schema Definition (XSD) validated document that includes an internal entity reference. An attacker could exploit this by providing a malicious document, leading to a type confusion error that causes the application to crash. This results in a denial of service (DoS), making the affected system or application unavailable."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Moderate"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-843",
"description": "Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T11:15:35.301Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:11503",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:11503"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-6732"
},
{
"name": "RHBZ#2461300",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461300"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/1097"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/411"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-04-23T22:04:33.973Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-04-16T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Libxml2: libxml2: denial of service via crafted xsd-validated document",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-843: Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-6732",
"datePublished": "2026-04-23T22:19:34.322Z",
"dateReserved": "2026-04-20T22:34:45.863Z",
"dateUpdated": "2026-08-31T11:15:35.301Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56405 (GCVE-0-2026-56405)
Vulnerability from cvelistv5
Published
2026-06-21 15:47
Modified
2026-06-22 17:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
libexpat before 2.8.2 has an integer overflow in getAttributeId.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56405",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T17:03:02.339016Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T17:03:09.067Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "libexpat before 2.8.2 has an integer overflow in getAttributeId."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-21T15:47:13.343Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1251"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56405",
"datePublished": "2026-06-21T15:47:13.343Z",
"dateReserved": "2026-06-21T15:47:12.947Z",
"dateUpdated": "2026-06-22T17:03:09.067Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56404 (GCVE-0-2026-56404)
Vulnerability from cvelistv5
Published
2026-06-21 15:45
Modified
2026-06-22 17:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
libexpat before 2.8.2 has an integer overflow in addBinding.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56404",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T17:04:59.811651Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T17:05:08.584Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "libexpat before 2.8.2 has an integer overflow in addBinding."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-21T15:45:55.652Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1249"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56404",
"datePublished": "2026-06-21T15:45:55.652Z",
"dateReserved": "2026-06-21T15:45:55.277Z",
"dateUpdated": "2026-06-22T17:05:08.584Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56406 (GCVE-0-2026-56406)
Vulnerability from cvelistv5
Published
2026-06-21 15:48
Modified
2026-06-22 17:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
libexpat before 2.8.2 has an integer overflow in XML_ParseBuffer because it lacked a check that was present in XML_Parse.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56406",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T17:02:37.192253Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T17:02:44.194Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "libexpat before 2.8.2 has an integer overflow in XML_ParseBuffer because it lacked a check that was present in XML_Parse."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-21T15:48:21.935Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1255"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56406",
"datePublished": "2026-06-21T15:48:21.935Z",
"dateReserved": "2026-06-21T15:48:21.578Z",
"dateUpdated": "2026-06-22T17:02:44.194Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5545 (GCVE-0-2026-5545)
Vulnerability from cvelistv5
Published
2026-05-13 08:27
Modified
2026-09-15 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Summary
libcurl might in some circumstances reuse the wrong connection when asked to
do an authenticated HTTP(S) request after a Negotiate-authenticated one, when
both use the same host.
libcurl features a pool of recent connections so that subsequent requests can
reuse an existing connection to avoid overhead.
When reusing a connection a range of criteria must be met. Due to a logical
error in the code, a request that was issued by an application could
wrongfully reuse an existing connection to the same server that was
authenticated using different credentials.
An application that first uses Negotiate authentication to a server with
`user1:password1` and then does another operation to the same server asking
for any authentication method but for `user2:password2` (while the previous
connection is still alive) - the second request gets confused and wrongly
reuses the same connection and sends the new request over that connection
thinking it uses a mix of user1's and user2's credentials when it is in fact
still using the connection authenticated for user1...
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.10.6 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-5545",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T17:46:36.115262Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T17:46:40.830Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3642555"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.10.6",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "33e43985b8f3b9e66691d06e70be0395849856cd",
"status": "affected",
"version": "e56ae1426cb7a0a4a427cf8d6099a821fdaae428",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
},
{
"status": "affected",
"version": "7.32.0"
},
{
"status": "affected",
"version": "7.31.0"
},
{
"status": "affected",
"version": "7.30.0"
},
{
"status": "affected",
"version": "7.29.0"
},
{
"status": "affected",
"version": "7.28.1"
},
{
"status": "affected",
"version": "7.28.0"
},
{
"status": "affected",
"version": "7.27.0"
},
{
"status": "affected",
"version": "7.26.0"
},
{
"status": "affected",
"version": "7.25.0"
},
{
"status": "affected",
"version": "7.24.0"
},
{
"status": "affected",
"version": "7.23.1"
},
{
"status": "affected",
"version": "7.23.0"
},
{
"status": "affected",
"version": "7.22.0"
},
{
"status": "affected",
"version": "7.21.7"
},
{
"status": "affected",
"version": "7.21.6"
},
{
"status": "affected",
"version": "7.21.5"
},
{
"status": "affected",
"version": "7.21.4"
},
{
"status": "affected",
"version": "7.21.3"
},
{
"status": "affected",
"version": "7.21.2"
},
{
"status": "affected",
"version": "7.21.1"
},
{
"status": "affected",
"version": "7.21.0"
},
{
"status": "affected",
"version": "7.20.1"
},
{
"status": "affected",
"version": "7.20.0"
},
{
"status": "affected",
"version": "7.19.7"
},
{
"status": "affected",
"version": "7.19.6"
},
{
"status": "affected",
"version": "7.19.5"
},
{
"status": "affected",
"version": "7.19.4"
},
{
"status": "affected",
"version": "7.19.3"
},
{
"status": "affected",
"version": "7.19.2"
},
{
"status": "affected",
"version": "7.19.1"
},
{
"status": "affected",
"version": "7.19.0"
},
{
"status": "affected",
"version": "7.18.2"
},
{
"status": "affected",
"version": "7.18.1"
},
{
"status": "affected",
"version": "7.18.0"
},
{
"status": "affected",
"version": "7.17.1"
},
{
"status": "affected",
"version": "7.17.0"
},
{
"status": "affected",
"version": "7.16.4"
},
{
"status": "affected",
"version": "7.16.3"
},
{
"status": "affected",
"version": "7.16.2"
},
{
"status": "affected",
"version": "7.16.1"
},
{
"status": "affected",
"version": "7.16.0"
},
{
"status": "affected",
"version": "7.15.5"
},
{
"status": "affected",
"version": "7.15.4"
},
{
"status": "affected",
"version": "7.15.3"
},
{
"status": "affected",
"version": "7.15.2"
},
{
"status": "affected",
"version": "7.15.1"
},
{
"status": "affected",
"version": "7.15.0"
},
{
"status": "affected",
"version": "7.14.1"
},
{
"status": "affected",
"version": "7.14.0"
},
{
"status": "affected",
"version": "7.13.2"
},
{
"status": "affected",
"version": "7.13.1"
},
{
"status": "affected",
"version": "7.13.0"
},
{
"status": "affected",
"version": "7.12.3"
},
{
"status": "affected",
"version": "7.12.2"
},
{
"status": "affected",
"version": "7.12.1"
},
{
"status": "affected",
"version": "7.12.0"
},
{
"status": "affected",
"version": "7.11.2"
},
{
"status": "affected",
"version": "7.11.1"
},
{
"status": "affected",
"version": "7.11.0"
},
{
"status": "affected",
"version": "7.10.8"
},
{
"status": "affected",
"version": "7.10.7"
},
{
"status": "affected",
"version": "7.10.6"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Quac Tran and Ngoc Hieu"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Stefan Eissing"
}
],
"descriptions": [
{
"lang": "en",
"value": "libcurl might in some circumstances reuse the wrong connection when asked to\ndo an authenticated HTTP(S) request after a Negotiate-authenticated one, when\nboth use the same host.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials.\n\nAn application that first uses Negotiate authentication to a server with\n`user1:password1` and then does another operation to the same server asking\nfor any authentication method but for `user2:password2` (while the previous\nconnection is still alive) - the second request gets confused and wrongly\nreuses the same connection and sends the new request over that connection\nthinking it uses a mix of user1\u0027s and user2\u0027s credentials when it is in fact\nstill using the connection authenticated for user1..."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-305",
"description": "Authentication Bypass by Primary Weakness",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:59.285Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-5545.json"
},
{
"url": "https://curl.se/docs/CVE-2026-5545.html"
},
{
"url": "https://hackerone.com/reports/3642555"
}
],
"title": "wrong reuse of HTTP Negotiate connection",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.10.6"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "e56ae1426cb7a0a4a427cf8d6099a821fdaae428"
},
{
"fixed": "33e43985b8f3b9e66691d06e70be0395849856cd"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0",
"7.32.0",
"7.31.0",
"7.30.0",
"7.29.0",
"7.28.1",
"7.28.0",
"7.27.0",
"7.26.0",
"7.25.0",
"7.24.0",
"7.23.1",
"7.23.0",
"7.22.0",
"7.21.7",
"7.21.6",
"7.21.5",
"7.21.4",
"7.21.3",
"7.21.2",
"7.21.1",
"7.21.0",
"7.20.1",
"7.20.0",
"7.19.7",
"7.19.6",
"7.19.5",
"7.19.4",
"7.19.3",
"7.19.2",
"7.19.1",
"7.19.0",
"7.18.2",
"7.18.1",
"7.18.0",
"7.17.1",
"7.17.0",
"7.16.4",
"7.16.3",
"7.16.2",
"7.16.1",
"7.16.0",
"7.15.5",
"7.15.4",
"7.15.3",
"7.15.2",
"7.15.1",
"7.15.0",
"7.14.1",
"7.14.0",
"7.13.2",
"7.13.1",
"7.13.0",
"7.12.3",
"7.12.2",
"7.12.1",
"7.12.0",
"7.11.2",
"7.11.1",
"7.11.0",
"7.10.8",
"7.10.7",
"7.10.6"
]
}
],
"aliases": [
"CVE-2026-5545"
],
"credits": [
{
"name": "Quac Tran and Ngoc Hieu",
"type": "finder"
},
{
"name": "Stefan Eissing",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Authentication Bypass by Primary Weakness",
"id": "CWE-305"
},
"URL": "https://curl.se/docs/CVE-2026-5545.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3642555",
"last_affected": "8.19.0",
"package": "curl",
"severity": "Medium",
"www": "https://curl.se/docs/CVE-2026-5545.html"
},
"details": "libcurl might in some circumstances reuse the wrong connection when asked to\ndo an authenticated HTTP(S) request after a Negotiate-authenticated one, when\nboth use the same host.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials.\n\nAn application that first uses Negotiate authentication to a server with\n`user1:password1` and then does another operation to the same server asking\nfor any authentication method but for `user2:password2` (while the previous\nconnection is still alive) - the second request gets confused and wrongly\nreuses the same connection and sends the new request over that connection\nthinking it uses a mix of user1\u0027s and user2\u0027s credentials when it is in fact\nstill using the connection authenticated for user1...",
"id": "CURL-CVE-2026-5545",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-04-29T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "wrong reuse of HTTP Negotiate connection"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-5545",
"datePublished": "2026-05-13T08:27:26.065Z",
"dateReserved": "2026-04-04T12:10:07.125Z",
"dateUpdated": "2026-09-15T06:02:59.285Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54875 (GCVE-0-2026-54875)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-29 17:17
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-208 - Observable Timing Discrepancy
Summary
Issue summary: A non-constant-time optimized implementation of scalar
point multiplication is used for SM2 private key operations on ARM64 and
RISC-V platforms.
Impact summary: An attacker able to measure the time taken by, or to observe
the cache-line access pattern of SM2 signing or decryption on an affected
platform can learn information about the secret scalar.
CWE: CWE-208: Observable Timing Discrepancy
Description: On ARM64 and RISC-V processors, the SM2 curve uses an optimized
scalar multiplication implementation whose conditional branches and table
look ups are chosen according to the bits of the secret scalar. The execution
time and the cache-access pattern therefore depend on the long-term private
key (during SM2 decryption) or the per-signature nonce (during SM2 signature
generation), forming a timing and cache side-channel.
FIPS Impact: no
SM2 is not a FIPS algorithm and the optimized SM2 implementation is not part
of the FIPS module.
OpenSSL 4.0, 3.6, 3.5 and 3.4 are vulnerable to this issue on AArch64 and
RISC-V.
OpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.
OpenSSL 4.0 users should upgrade to OpenSSL 4.0.3.
OpenSSL 3.6 users should upgrade to OpenSSL 3.6.5.
OpenSSL 3.5 users should upgrade to OpenSSL 3.5.9.
OpenSSL 3.4 users should upgrade to OpenSSL 3.4.8.
This issue was reported on 2 May 2026 by Abhinav Agarwal.
It was independently reported on 6 June 2026 by Feng Xue.
The fix was developed by Igor Ustinov.
-- cut (non-publishing metadata for internal use) --
Reported by: Abhinav Agarwal, Feng Xue
Fixed by: Igor Ustinov
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-54875",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T17:17:05.164162Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T17:17:20.483Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Abhinav Agarwal"
},
{
"lang": "en",
"type": "reporter",
"value": "Feng Xue"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Igor Ustinov"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: A non-constant-time optimized implementation of scalar\u003cbr\u003epoint multiplication is used for SM2 private key operations on ARM64 and\u003cbr\u003eRISC-V platforms.\u003cbr\u003e\u003cbr\u003eImpact summary: An attacker able to measure the time taken by, or to observe\u003cbr\u003ethe cache-line access pattern of SM2 signing or decryption on an affected\u003cbr\u003eplatform can learn information about the secret scalar.\u003cbr\u003e\u003cbr\u003eCWE: CWE-208: Observable Timing Discrepancy\u003cbr\u003e\u003cbr\u003eDescription: On ARM64 and RISC-V processors, the SM2 curve uses an optimized\u003cbr\u003escalar multiplication implementation whose conditional branches and table\u003cbr\u003elook ups are chosen according to the bits of the secret scalar. The execution\u003cbr\u003etime and the cache-access pattern therefore depend on the long-term private\u003cbr\u003ekey (during SM2 decryption) or the per-signature nonce (during SM2 signature\u003cbr\u003egeneration), forming a timing and cache side-channel.\u003cbr\u003e\u003cbr\u003eFIPS Impact: no\u003cbr\u003eSM2 is not a FIPS algorithm and the optimized SM2 implementation is not part\u003cbr\u003eof the FIPS module.\u003cbr\u003e\u003cbr\u003eOpenSSL 4.0, 3.6, 3.5 and 3.4 are vulnerable to this issue on AArch64 and\u003cbr\u003eRISC-V.\u003cbr\u003e\u003cbr\u003eOpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.\u003cbr\u003e\u003cbr\u003eOpenSSL 4.0 users should upgrade to OpenSSL 4.0.3.\u003cbr\u003eOpenSSL 3.6 users should upgrade to OpenSSL 3.6.5.\u003cbr\u003eOpenSSL 3.5 users should upgrade to OpenSSL 3.5.9.\u003cbr\u003eOpenSSL 3.4 users should upgrade to OpenSSL 3.4.8.\u003cbr\u003e\u003cbr\u003eThis issue was reported on 2 May 2026 by Abhinav Agarwal.\u003cbr\u003eIt was independently reported on 6 June 2026 by Feng Xue.\u003cbr\u003eThe fix was developed by Igor Ustinov.\u003cbr\u003e\u003cbr\u003e-- cut (non-publishing metadata for internal use) --\u003cbr\u003eReported by: Abhinav Agarwal, Feng Xue\u003cbr\u003eFixed by: Igor Ustinov"
}
],
"value": "Issue summary: A non-constant-time optimized implementation of scalar\npoint multiplication is used for SM2 private key operations on ARM64 and\nRISC-V platforms.\n\nImpact summary: An attacker able to measure the time taken by, or to observe\nthe cache-line access pattern of SM2 signing or decryption on an affected\nplatform can learn information about the secret scalar.\n\nCWE: CWE-208: Observable Timing Discrepancy\n\nDescription: On ARM64 and RISC-V processors, the SM2 curve uses an optimized\nscalar multiplication implementation whose conditional branches and table\nlook ups are chosen according to the bits of the secret scalar. The execution\ntime and the cache-access pattern therefore depend on the long-term private\nkey (during SM2 decryption) or the per-signature nonce (during SM2 signature\ngeneration), forming a timing and cache side-channel.\n\nFIPS Impact: no\nSM2 is not a FIPS algorithm and the optimized SM2 implementation is not part\nof the FIPS module.\n\nOpenSSL 4.0, 3.6, 3.5 and 3.4 are vulnerable to this issue on AArch64 and\nRISC-V.\n\nOpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.\n\nOpenSSL 4.0 users should upgrade to OpenSSL 4.0.3.\nOpenSSL 3.6 users should upgrade to OpenSSL 3.6.5.\nOpenSSL 3.5 users should upgrade to OpenSSL 3.5.9.\nOpenSSL 3.4 users should upgrade to OpenSSL 3.4.8.\n\nThis issue was reported on 2 May 2026 by Abhinav Agarwal.\nIt was independently reported on 6 June 2026 by Feng Xue.\nThe fix was developed by Igor Ustinov.\n\n-- cut (non-publishing metadata for internal use) --\nReported by: Abhinav Agarwal, Feng Xue\nFixed by: Igor Ustinov"
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-208",
"description": "CWE-208 Observable Timing Discrepancy",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:17.206Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/9794ed473764839275cb701b4850f3c24d929c28"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/dddad955d5ff3e9507619cf4e0f13e9988e2197c"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/469f3e42629f4a0b5631796e20c66c92c138a3e8"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/3f01bbc28f7e08211fcdc797fd43816504f94257"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Non-Constant-Time SM2 Scalar Multiplication on ARM64 and RISC-V",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-54875",
"datePublished": "2026-09-29T15:32:17.206Z",
"dateReserved": "2026-06-16T10:18:08.636Z",
"dateUpdated": "2026-09-29T17:17:20.483Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-9546 (GCVE-0-2026-9546)
Vulnerability from cvelistv5
Published
2026-07-03 06:18
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Summary
A vulnerability in libcurl caused the HTTP `Referer:` header to persist even
when explicitly cleared. While the documentation states that passing NULL to
`CURLOPT_REFERER` suppresses the header, the option failed to clear the
internal state. As a result, the previous referrer string was erroneously
reused and sent in subsequent requests, potentially leaking sensitive
information to unintended servers.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-9546",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T16:51:06.094113Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T16:51:49.410Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3754343"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.18.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "862e8a74a84478d82973471b4f49dc2746c1780e",
"status": "affected",
"version": "2cb868242dc2ac9cd52ee64987ef51d5964a56f9",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "renjian on hackerone"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in libcurl caused the HTTP `Referer:` header to persist even\nwhen explicitly cleared. While the documentation states that passing NULL to\n`CURLOPT_REFERER` suppresses the header, the option failed to clear the\ninternal state. As a result, the previous referrer string was erroneously\nreused and sent in subsequent requests, potentially leaking sensitive\ninformation to unintended servers."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:33.325Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-9546.json"
},
{
"url": "https://curl.se/docs/CVE-2026-9546.html"
},
{
"url": "https://hackerone.com/reports/3754343"
}
],
"title": "sending old referer",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "8.18.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "2cb868242dc2ac9cd52ee64987ef51d5964a56f9"
},
{
"fixed": "862e8a74a84478d82973471b4f49dc2746c1780e"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0"
]
}
],
"aliases": [
"CVE-2026-9546"
],
"credits": [
{
"name": "renjian on hackerone",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Exposure of Sensitive Information to an Unauthorized Actor",
"id": "CWE-200"
},
"URL": "https://curl.se/docs/CVE-2026-9546.json",
"affects": "lib",
"issue": "https://hackerone.com/reports/3754343",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-9546.html"
},
"details": "A vulnerability in libcurl caused the HTTP `Referer:` header to persist even\nwhen explicitly cleared. While the documentation states that passing NULL to\n`CURLOPT_REFERER` suppresses the header, the option failed to clear the\ninternal state. As a result, the previous referrer string was erroneously\nreused and sent in subsequent requests, potentially leaking sensitive\ninformation to unintended servers.",
"id": "CURL-CVE-2026-9546",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "sending old referer"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-9546",
"datePublished": "2026-07-03T06:18:14.447Z",
"dateReserved": "2026-05-26T06:45:18.723Z",
"dateUpdated": "2026-09-15T06:03:33.325Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-9080 (GCVE-0-2026-9080)
Vulnerability from cvelistv5
Published
2026-07-03 06:17
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION`
callback triggers a use-after-free vulnerability, where libcurl attempts to
store a flag using a dangling struct pointer immediately after that pointer's
memory has been freed.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-9080",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T16:54:41.919630Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T16:55:16.890Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3749204"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "8.13.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "5ab34cba42e4ee4282fe8bab43f311d51b9bf9bd",
"status": "affected",
"version": "cfc657a48dbafb4194676d4c9d841388b3a22210",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Joshua Rogers (Aisle Research)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Joshua Rogers (Aisle Research)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION`\ncallback triggers a use-after-free vulnerability, where libcurl attempts to\nstore a flag using a dangling struct pointer immediately after that pointer\u0027s\nmemory has been freed."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:30.239Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-9080.json"
},
{
"url": "https://curl.se/docs/CVE-2026-9080.html"
},
{
"url": "https://hackerone.com/reports/3749204"
}
],
"title": "UAF after pause in socket callback",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "8.13.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "cfc657a48dbafb4194676d4c9d841388b3a22210"
},
{
"fixed": "5ab34cba42e4ee4282fe8bab43f311d51b9bf9bd"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0"
]
}
],
"aliases": [
"CVE-2026-9080"
],
"credits": [
{
"name": "Joshua Rogers (Aisle Research)",
"type": "finder"
},
{
"name": "Joshua Rogers (Aisle Research)",
"type": "remediation developer"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Use After Free",
"id": "CWE-416"
},
"URL": "https://curl.se/docs/CVE-2026-9080.json",
"affects": "lib",
"issue": "https://hackerone.com/reports/3749204",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-9080.html"
},
"details": "Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION`\ncallback triggers a use-after-free vulnerability, where libcurl attempts to\nstore a flag using a dangling struct pointer immediately after that pointer\u0027s\nmemory has been freed.",
"id": "CURL-CVE-2026-9080",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "UAF after pause in socket callback"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-9080",
"datePublished": "2026-07-03T06:17:34.905Z",
"dateReserved": "2026-05-20T12:59:50.588Z",
"dateUpdated": "2026-09-15T06:03:30.239Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-6429 (GCVE-0-2026-6429)
Vulnerability from cvelistv5
Published
2026-05-13 08:28
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Summary
When asked to both use a `.netrc` file for credentials and to follow HTTP
redirects, libcurl could leak the password used for the first host to the
followed-to host under certain circumstances.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.14.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-6429",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T14:03:52.312824Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T14:03:55.343Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.14.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "b4024bf808bd558026fdc6096e8457f199ace306",
"status": "affected",
"version": "01165e08e0d131b399fba2190f17af67e66f0888",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
},
{
"status": "affected",
"version": "7.32.0"
},
{
"status": "affected",
"version": "7.31.0"
},
{
"status": "affected",
"version": "7.30.0"
},
{
"status": "affected",
"version": "7.29.0"
},
{
"status": "affected",
"version": "7.28.1"
},
{
"status": "affected",
"version": "7.28.0"
},
{
"status": "affected",
"version": "7.27.0"
},
{
"status": "affected",
"version": "7.26.0"
},
{
"status": "affected",
"version": "7.25.0"
},
{
"status": "affected",
"version": "7.24.0"
},
{
"status": "affected",
"version": "7.23.1"
},
{
"status": "affected",
"version": "7.23.0"
},
{
"status": "affected",
"version": "7.22.0"
},
{
"status": "affected",
"version": "7.21.7"
},
{
"status": "affected",
"version": "7.21.6"
},
{
"status": "affected",
"version": "7.21.5"
},
{
"status": "affected",
"version": "7.21.4"
},
{
"status": "affected",
"version": "7.21.3"
},
{
"status": "affected",
"version": "7.21.2"
},
{
"status": "affected",
"version": "7.21.1"
},
{
"status": "affected",
"version": "7.21.0"
},
{
"status": "affected",
"version": "7.20.1"
},
{
"status": "affected",
"version": "7.20.0"
},
{
"status": "affected",
"version": "7.19.7"
},
{
"status": "affected",
"version": "7.19.6"
},
{
"status": "affected",
"version": "7.19.5"
},
{
"status": "affected",
"version": "7.19.4"
},
{
"status": "affected",
"version": "7.19.3"
},
{
"status": "affected",
"version": "7.19.2"
},
{
"status": "affected",
"version": "7.19.1"
},
{
"status": "affected",
"version": "7.19.0"
},
{
"status": "affected",
"version": "7.18.2"
},
{
"status": "affected",
"version": "7.18.1"
},
{
"status": "affected",
"version": "7.18.0"
},
{
"status": "affected",
"version": "7.17.1"
},
{
"status": "affected",
"version": "7.17.0"
},
{
"status": "affected",
"version": "7.16.4"
},
{
"status": "affected",
"version": "7.16.3"
},
{
"status": "affected",
"version": "7.16.2"
},
{
"status": "affected",
"version": "7.16.1"
},
{
"status": "affected",
"version": "7.16.0"
},
{
"status": "affected",
"version": "7.15.5"
},
{
"status": "affected",
"version": "7.15.4"
},
{
"status": "affected",
"version": "7.15.3"
},
{
"status": "affected",
"version": "7.15.2"
},
{
"status": "affected",
"version": "7.15.1"
},
{
"status": "affected",
"version": "7.15.0"
},
{
"status": "affected",
"version": "7.14.1"
},
{
"status": "affected",
"version": "7.14.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Muhamad Arga Reksapati"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "When asked to both use a `.netrc` file for credentials and to follow HTTP\nredirects, libcurl could leak the password used for the first host to the\nfollowed-to host under certain circumstances."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:05.855Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-6429.json"
},
{
"url": "https://curl.se/docs/CVE-2026-6429.html"
},
{
"url": "https://hackerone.com/reports/3677759"
}
],
"title": "netrc credential leak with reused proxy connection",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.14.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "01165e08e0d131b399fba2190f17af67e66f0888"
},
{
"fixed": "b4024bf808bd558026fdc6096e8457f199ace306"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0",
"7.32.0",
"7.31.0",
"7.30.0",
"7.29.0",
"7.28.1",
"7.28.0",
"7.27.0",
"7.26.0",
"7.25.0",
"7.24.0",
"7.23.1",
"7.23.0",
"7.22.0",
"7.21.7",
"7.21.6",
"7.21.5",
"7.21.4",
"7.21.3",
"7.21.2",
"7.21.1",
"7.21.0",
"7.20.1",
"7.20.0",
"7.19.7",
"7.19.6",
"7.19.5",
"7.19.4",
"7.19.3",
"7.19.2",
"7.19.1",
"7.19.0",
"7.18.2",
"7.18.1",
"7.18.0",
"7.17.1",
"7.17.0",
"7.16.4",
"7.16.3",
"7.16.2",
"7.16.1",
"7.16.0",
"7.15.5",
"7.15.4",
"7.15.3",
"7.15.2",
"7.15.1",
"7.15.0",
"7.14.1",
"7.14.0"
]
}
],
"aliases": [
"CVE-2026-6429"
],
"credits": [
{
"name": "Muhamad Arga Reksapati",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Exposure of Sensitive Information to an Unauthorized Actor",
"id": "CWE-200"
},
"URL": "https://curl.se/docs/CVE-2026-6429.json",
"affects": "lib",
"issue": "https://hackerone.com/reports/3677759",
"last_affected": "8.19.0",
"package": "curl",
"severity": "Medium",
"www": "https://curl.se/docs/CVE-2026-6429.html"
},
"details": "When asked to both use a `.netrc` file for credentials and to follow HTTP\nredirects, libcurl could leak the password used for the first host to the\nfollowed-to host under certain circumstances.",
"id": "CURL-CVE-2026-6429",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-04-29T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "netrc credential leak with reused proxy connection"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-6429",
"datePublished": "2026-05-13T08:28:36.166Z",
"dateReserved": "2026-04-16T14:48:02.991Z",
"dateUpdated": "2026-09-15T06:03:05.855Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-86144 (GCVE-0-2026-86144)
Vulnerability from cvelistv5
Published
2026-09-05 04:34
Modified
2026-09-08 13:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-669 - Incorrect Resource Transfer Between Spheres
Summary
In xinclude in libxml2 before 2.15.4, xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlags. This has security relevance for, for example, the XML_PARSE_NONET flag, if (without it) a custom resource loader accesses the internet and triggers XML external entity injection, SSRF, or a denial of service (e.g., for an attacker-controlled internet resource that is intentionally slow).
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-86144",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-08T13:04:43.439318Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-08T13:04:51.845Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libxml2",
"vendor": "xmlsoft",
"versions": [
{
"lessThan": "2.15.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.15.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In xinclude in libxml2 before 2.15.4, xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlags. This has security relevance for, for example, the XML_PARSE_NONET flag, if (without it) a custom resource loader accesses the internet and triggers XML external entity injection, SSRF, or a denial of service (e.g., for an attacker-controlled internet resource that is intentionally slow)."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 5.6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-669",
"description": "CWE-669 Incorrect Resource Transfer Between Spheres",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-05T04:34:43.972Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"
},
{
"url": "https://github.com/GNOME/libxml2/commit/b63cd517afecb76582dd9488c55e54ceaf50de61"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-86144",
"datePublished": "2026-09-05T04:34:43.972Z",
"dateReserved": "2026-09-05T04:34:43.632Z",
"dateUpdated": "2026-09-08T13:04:51.845Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-45186 (GCVE-0-2026-45186)
Vulnerability from cvelistv5
Published
2026-05-10 06:36
Modified
2026-10-15 01:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Summary
In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-45186",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-11T15:01:28.359121Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T15:02:22.001Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2026-05-11T22:23:27.385Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/11/16"
}
],
"title": "CVE Program Container"
},
{
"affected": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"packageName": "expat",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.7.3-1.el10_2.1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "expat",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.5.0-2.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9",
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "expat",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.5.0-6.el9_8.1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_core_services:1"
],
"defaultStatus": "unaffected",
"packageName": "libexpat-2.dll",
"product": "Red Hat JBoss Core Services 2.4.62.SP4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:discovery:2::el9"
],
"defaultStatus": "affected",
"packageName": "discovery/discovery-server-rhel9",
"product": "Red Hat Discovery 2",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1782159791",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:discovery:2::el9"
],
"defaultStatus": "affected",
"packageName": "discovery/discovery-ui-rhel9",
"product": "Red Hat Discovery 2",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1782166952",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/cds-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1781525684",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/haproxy-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1781525671",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/installer-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1781525693",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/rhua-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1781525739",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/cds-kubernetes-tp-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787241211",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/installer-tp-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787135742",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/rhua-tp-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787241260",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "affected",
"packageName": "compat-expat1",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "affected",
"packageName": "expat",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "affected",
"packageName": "expat",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "mingw-expat",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "xmlrpc-c",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
}
],
"datePublic": "2026-05-10T06:36:16.927Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in libexpat. When processing a specially crafted XML input containing a specific pattern of attributes, the parsing time increases quadratically due to checks for attribute name collisions. This consumes excessive CPU resources and eventually results in a denial of service."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-407",
"description": "Inefficient Algorithmic Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-16T12:04:21.202Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-45186"
},
{
"name": "RHBZ#2468575",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468575"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45186.json"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:22715"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:23230"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:22721"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:29197"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:27201"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:58981"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:26319"
}
],
"solutions": [
{
"lang": "en",
"value": "RHSA-2026:22715: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:23230: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:22721: Red Hat Enterprise Linux BaseOS (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:29197: Red Hat Discovery 2"
},
{
"lang": "en",
"value": "RHSA-2026:27201: Red Hat JBoss Core Services 2.4.62.SP4"
},
{
"lang": "en",
"value": "RHSA-2026:58981: Red Hat Update Infrastructure 5"
},
{
"lang": "en",
"value": "RHSA-2026:26319: Red Hat Update Infrastructure 5"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-05-10T07:00:47.768Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-05-10T06:36:16.927Z",
"value": "Made public."
}
],
"title": "libexpat: denial of service via crafted XML input",
"workarounds": [
{
"lang": "en",
"value": "To mitigate this vulnerability, restrict the maximum size of incoming XML payloads. It is especially critical to limit the decompressed size if the application accepts compressed XML files. Also, consider running the application inside a container or a restricted environment to ensure that the high consumption of CPU resources does not affect the host system."
}
],
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.6",
"status": "affected",
"version": "V3.1.5",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.6",
"status": "affected",
"version": "V3.1.5",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.6",
"status": "affected",
"version": "V3.1.5",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.6",
"status": "affected",
"version": "V3.1.5",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.6",
"status": "affected",
"version": "V3.1.5",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-15T01:19:35.543Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.1",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 2.9,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-407",
"description": "CWE-407 Inefficient Algorithmic Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-10T06:42:10.021Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1216"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-45186",
"datePublished": "2026-05-10T06:36:16.927Z",
"dateReserved": "2026-05-10T06:36:15.697Z",
"dateUpdated": "2026-10-15T01:19:35.543Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-76641 (GCVE-0-2026-76641)
Vulnerability from cvelistv5
Published
2026-08-20 17:31
Modified
2026-10-01 15:21
Severity ?
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
Expat through 2.8.3 contains an out-of-bounds read vulnerability that allows attackers to trigger memory corruption by processing XML with external entity parsers created via XML_ExternalEntityParserCreate. A struct size mismatch between ELEMENT_TYPE members causes storeAtts to read the attIndex member past allocated memory boundaries, resulting in failure to normalize whitespace in non-CDATA attributes or a wild pointer dereference causing a segfault. This vulnerability was introduced by the fix for CVE-2026-66046.
References
| URL | Tags | |
|---|---|---|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76641",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T18:48:51.305928Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T18:49:21.993Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "affected",
"packageURL": "pkg:github/libexpat/libexpat",
"product": "libexpat",
"repo": "https://github.com/libexpat/libexpat",
"vendor": "libexpat",
"versions": [
{
"lessThanOrEqual": "2.8.3",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndIncluding": "2.8.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "ZeyouLiu (@liuzeyouzeyou)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "ZeyouLiu (@liuzeyouzeyou)"
}
],
"datePublic": "2026-08-19T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Expat through 2.8.3 contains an out-of-bounds read vulnerability that allows attackers to trigger memory corruption by processing XML with external entity parsers created via XML_ExternalEntityParserCreate. A struct size mismatch between ELEMENT_TYPE members causes storeAtts to read the attIndex member past allocated memory boundaries, resulting in failure to normalize whitespace in non-CDATA attributes or a wild pointer dereference causing a segfault. This vulnerability was introduced by the fix for CVE-2026-66046."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-01T15:21:11.093Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Pull Request",
"tags": [
"issue-tracking"
],
"url": "https://github.com/libexpat/libexpat/pull/1331"
},
{
"name": "Patch Commit",
"tags": [
"patch"
],
"url": "https://github.com/libexpat/libexpat/commit/98599f6dcc2b460410881fe420f5f55d6bec63bf"
},
{
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/expat-out-of-bounds-read-via-dtdcopy"
}
],
"source": {
"discovery": "UNKNOWN"
},
"tags": [
"x_open-source"
],
"title": "Expat Out-of-Bounds Read via dtdCopy",
"x_generator": {
"engine": "vulncheck"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-76641",
"datePublished": "2026-08-20T17:31:10.610Z",
"dateReserved": "2026-08-19T14:53:58.575Z",
"dateUpdated": "2026-10-01T15:21:11.093Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-76957 (GCVE-0-2026-76957)
Vulnerability from cvelistv5
Published
2026-08-20 04:28
Modified
2026-08-20 15:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after-free can occur. NOTE: this is similar to CVE-2026-50219, CVE-2026-56131 and CVE-2026-56412.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76957",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T15:05:41.792254Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T15:26:27.942Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after-free can occur. NOTE: this is similar to CVE-2026-50219, CVE-2026-56131 and CVE-2026-56412."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T04:28:04.788Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1322"
},
{
"url": "https://github.com/libexpat/libexpat/pull/1329"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-76957",
"datePublished": "2026-08-20T04:28:04.788Z",
"dateReserved": "2026-08-20T04:28:04.012Z",
"dateUpdated": "2026-08-20T15:26:27.942Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-75806 (GCVE-0-2026-75806)
Vulnerability from cvelistv5
Published
2026-09-29 15:32
Modified
2026-09-29 16:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Summary
Issue summary: An established DTLS 1.2 association using an AEAD cipher suite
can be terminated by a single unauthenticated datagram whose encrypted
fragment is shorter than the mandatory explicit IV and authentication tag
overhead.
Impact summary: An attacker who can send a datagram that is routed to an
existing DTLS 1.2 association can tear that association down without knowing
any key material. This is a Denial of Service limited to the targeted
association. There is no memory safety or confidentiality impact.
CWE: CWE-1284: Improper Validation of Specified Quantity in Input
Description: In TLS 1.2 and DTLS 1.2 every record protected by an AEAD cipher
suite carries an explicit IV followed by the ciphertext and an authentication
tag. When decrypting such a record the record layer passed the record length to
the cipher implementation before checking that the record was long enough to
contain the explicit IV and the tag. For a record shorter than that overhead the
cipher implementation rejected the impossible length, and the record layer
treated this as an internal failure and raised a fatal internal_error alert
instead of treating the record as one that failed authentication.
In TLS 1.2 the same record causes a fatal internal_error alert instead of the
expected bad_record_mac alert. Since any undecryptable record already
terminates a TLS connection, this is a protocol conformance issue rather than
a security issue in TLS.
The fix validates the record length against the explicit IV and tag length
before any AEAD processing, so that TLS reports bad_record_mac and DTLS
silently discards the record.
FIPS impact: no
The affected code is outside the FIPS module boundary.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-75806",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T16:52:47.298458Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T16:53:23.785Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.3",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.5",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.9",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.8",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.23",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
},
{
"lessThan": "1.1.1zj",
"status": "affected",
"version": "1.1.1",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Mounir Idrassi"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Mounir Idrassi"
}
],
"datePublic": "2026-09-29T14:21:57.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: An established DTLS 1.2 association using an AEAD cipher suite\u003cbr\u003ecan be terminated by a single unauthenticated datagram whose encrypted\u003cbr\u003efragment is shorter than the mandatory explicit IV and authentication tag\u003cbr\u003eoverhead.\u003cbr\u003e\u003cbr\u003eImpact summary: An attacker who can send a datagram that is routed to an\u003cbr\u003eexisting DTLS 1.2 association can tear that association down without knowing\u003cbr\u003eany key material. This is a Denial of Service limited to the targeted\u003cbr\u003eassociation. There is no memory safety or confidentiality impact.\u003cbr\u003e\u003cbr\u003eCWE: CWE-1284: Improper Validation of Specified Quantity in Input\u003cbr\u003e\u003cbr\u003eDescription: In TLS 1.2 and DTLS 1.2 every record protected by an AEAD cipher\u003cbr\u003esuite carries an explicit IV followed by the ciphertext and an authentication\u003cbr\u003etag. When decrypting such a record the record layer passed the record length to\u003cbr\u003ethe cipher implementation before checking that the record was long enough to\u003cbr\u003econtain the explicit IV and the tag. For a record shorter than that overhead the\u003cbr\u003ecipher implementation rejected the impossible length, and the record layer\u003cbr\u003etreated this as an internal failure and raised a fatal internal_error alert\u003cbr\u003einstead of treating the record as one that failed authentication.\u003cbr\u003e\u003cbr\u003eIn TLS 1.2 the same record causes a fatal internal_error alert instead of the\u003cbr\u003eexpected bad_record_mac alert. Since any undecryptable record already\u003cbr\u003eterminates a TLS connection, this is a protocol conformance issue rather than\u003cbr\u003ea security issue in TLS.\u003cbr\u003e\u003cbr\u003eThe fix validates the record length against the explicit IV and tag length\u003cbr\u003ebefore any AEAD processing, so that TLS reports bad_record_mac and DTLS\u003cbr\u003esilently discards the record.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eThe affected code is outside the FIPS module boundary."
}
],
"value": "Issue summary: An established DTLS 1.2 association using an AEAD cipher suite\ncan be terminated by a single unauthenticated datagram whose encrypted\nfragment is shorter than the mandatory explicit IV and authentication tag\noverhead.\n\nImpact summary: An attacker who can send a datagram that is routed to an\nexisting DTLS 1.2 association can tear that association down without knowing\nany key material. This is a Denial of Service limited to the targeted\nassociation. There is no memory safety or confidentiality impact.\n\nCWE: CWE-1284: Improper Validation of Specified Quantity in Input\n\nDescription: In TLS 1.2 and DTLS 1.2 every record protected by an AEAD cipher\nsuite carries an explicit IV followed by the ciphertext and an authentication\ntag. When decrypting such a record the record layer passed the record length to\nthe cipher implementation before checking that the record was long enough to\ncontain the explicit IV and the tag. For a record shorter than that overhead the\ncipher implementation rejected the impossible length, and the record layer\ntreated this as an internal failure and raised a fatal internal_error alert\ninstead of treating the record as one that failed authentication.\n\nIn TLS 1.2 the same record causes a fatal internal_error alert instead of the\nexpected bad_record_mac alert. Since any undecryptable record already\nterminates a TLS connection, this is a protocol conformance issue rather than\na security issue in TLS.\n\nThe fix validates the record length against the explicit IV and tag length\nbefore any AEAD processing, so that TLS reports bad_record_mac and DTLS\nsilently discards the record.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1284",
"description": "CWE-1284 Improper Validation of Specified Quantity in Input",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T15:32:21.457Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260929.txt"
},
{
"name": "4.0.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/04728a289a823e68137f88da016cb9ede307217d"
},
{
"name": "3.6.5 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/050b275cd671a6eed1d6457642d41a5a77aab972"
},
{
"name": "3.5.9 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/3a4589d015a9049d47b66f186cf50a8711343a1d"
},
{
"name": "3.4.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/5af82fefbaf2b5fec2fc0e1d87f112844902f01d"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Unauthenticated and Undersized DTLS 1.2 AEAD Record Causes DoS",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-75806",
"datePublished": "2026-09-29T15:32:21.457Z",
"dateReserved": "2026-08-18T09:34:32.659Z",
"dateUpdated": "2026-09-29T16:53:23.785Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54874 (GCVE-0-2026-54874)
Vulnerability from cvelistv5
Published
2026-08-25 12:59
Modified
2026-08-25 14:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Summary
Issue summary: Receiving a DTLS record for a future epoch while a handshake
is in progress causes OpenSSL to buffer far more memory than the record
itself requires.
Impact summary: A peer can use a small amount of network traffic to make an
OpenSSL DTLS endpoint retain a disproportionately large amount of memory,
which may lead to a Denial of Service.
CWE: CWE-405: Asymmetric Resource Consumption (Amplification)
Description: While a DTLS handshake is in progress, a peer may legitimately
have already moved on to the next epoch (for example, having sent its
ChangeCipherSpec and Finished messages) before the local endpoint has
processed the same transition, typically because of reordering on the
underlying UDP transport. OpenSSL buffers such early records so that they
can be processed once the local endpoint catches up.
Buffering a record currently retains the entire read buffer it arrived in,
which is sized to hold the largest possible DTLS record (around 16
kilobytes), rather than just the bytes that make up the record itself. Up
to 100 such records may be buffered per connection. As a result, a peer
that sends a stream of small forged records claiming to belong to the next
epoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of
memory, despite sending only a small fraction of that amount of data over
the network.
An attacker therefore gains a memory amplification factor of around 1200,
and can multiply the effect across as many associations as it is able to
open, making this a remote memory exhaustion Denial of Service risk for
DTLS servers. Since the memory retained per connection remains bounded,
and any limit an application already places on the number of concurrent
associations also bounds the total exposure, this issue has been assessed
as Low severity.
FIPS impact: no
No FIPS modules are affected by this issue as the affected code is outside
the OpenSSL FIPS module boundary.
OpenSSL 4.0, 3.6, 3.5, 3.4, 3.0, 1.1.1 and 1.0.2 are vulnerable to this
issue.
OpenSSL 4.0 users should upgrade to OpenSSL 4.0.2.
OpenSSL 3.6 users should upgrade to OpenSSL 3.6.4.
OpenSSL 3.5 users should upgrade to OpenSSL 3.5.8.
OpenSSL 3.4 users should upgrade to OpenSSL 3.4.7.
OpenSSL 3.0 users should upgrade to OpenSSL 3.0.22.
Premium support customers only:
OpenSSL 1.1.1 users should upgrade to OpenSSL 1.1.1zi
OpenSSL 1.0.2 users should upgrade to OpenSSL 1.0.2zr
This issue was reported on 18 May 2026 by Amazon Web Services.
The fix has been developed by Matt Caswell.
-- cut (non-publishing metadata for internal use) --
Reported by: Amazon Web Services
Fixed by: Matt Caswell
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-54874",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T14:28:32.620361Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T14:28:37.339Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.2",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.4",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.8",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.7",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.22",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
},
{
"lessThan": "1.1.1zi",
"status": "affected",
"version": "1.1.1",
"versionType": "custom"
},
{
"lessThan": "1.0.2zr",
"status": "affected",
"version": "1.0.2",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Amazon Web Services"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Matt Caswell"
}
],
"datePublic": "2026-08-25T11:36:16.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: Receiving a DTLS record for a future epoch while a handshake\u003cbr\u003eis in progress causes OpenSSL to buffer far more memory than the record\u003cbr\u003eitself requires.\u003cbr\u003e\u003cbr\u003eImpact summary: A peer can use a small amount of network traffic to make an\u003cbr\u003eOpenSSL DTLS endpoint retain a disproportionately large amount of memory,\u003cbr\u003ewhich may lead to a Denial of Service.\u003cbr\u003e\u003cbr\u003eCWE: CWE-405: Asymmetric Resource Consumption (Amplification)\u003cbr\u003e\u003cbr\u003eDescription: While a DTLS handshake is in progress, a peer may legitimately\u003cbr\u003ehave already moved on to the next epoch (for example, having sent its\u003cbr\u003eChangeCipherSpec and Finished messages) before the local endpoint has\u003cbr\u003eprocessed the same transition, typically because of reordering on the\u003cbr\u003eunderlying UDP transport. OpenSSL buffers such early records so that they\u003cbr\u003ecan be processed once the local endpoint catches up.\u003cbr\u003e\u003cbr\u003eBuffering a record currently retains the entire read buffer it arrived in,\u003cbr\u003ewhich is sized to hold the largest possible DTLS record (around 16\u003cbr\u003ekilobytes), rather than just the bytes that make up the record itself. Up\u003cbr\u003eto 100 such records may be buffered per connection. As a result, a peer\u003cbr\u003ethat sends a stream of small forged records claiming to belong to the next\u003cbr\u003eepoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of\u003cbr\u003ememory, despite sending only a small fraction of that amount of data over\u003cbr\u003ethe network.\u003cbr\u003e\u003cbr\u003eAn attacker therefore gains a memory amplification factor of around 1200,\u003cbr\u003eand can multiply the effect across as many associations as it is able to\u003cbr\u003eopen, making this a remote memory exhaustion Denial of Service risk for\u003cbr\u003eDTLS servers. Since the memory retained per connection remains bounded,\u003cbr\u003eand any limit an application already places on the number of concurrent\u003cbr\u003eassociations also bounds the total exposure, this issue has been assessed\u003cbr\u003eas Low severity.\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003e\u003cbr\u003eNo FIPS modules are affected by this issue as the affected code is outside\u003cbr\u003ethe OpenSSL FIPS module boundary.\u003cbr\u003e\u003cbr\u003eOpenSSL 4.0, 3.6, 3.5, 3.4, 3.0, 1.1.1 and 1.0.2 are vulnerable to this\u003cbr\u003eissue.\u003cbr\u003e\u003cbr\u003eOpenSSL 4.0 users should upgrade to OpenSSL 4.0.2.\u003cbr\u003eOpenSSL 3.6 users should upgrade to OpenSSL 3.6.4.\u003cbr\u003eOpenSSL 3.5 users should upgrade to OpenSSL 3.5.8.\u003cbr\u003eOpenSSL 3.4 users should upgrade to OpenSSL 3.4.7.\u003cbr\u003eOpenSSL 3.0 users should upgrade to OpenSSL 3.0.22.\u003cbr\u003e\u003cbr\u003ePremium support customers only:\u003cbr\u003eOpenSSL 1.1.1 users should upgrade to OpenSSL 1.1.1zi\u003cbr\u003eOpenSSL 1.0.2 users should upgrade to OpenSSL 1.0.2zr\u003cbr\u003e\u003cbr\u003eThis issue was reported on 18 May 2026 by Amazon Web Services.\u003cbr\u003eThe fix has been developed by Matt Caswell.\u003cbr\u003e\u003cbr\u003e-- cut (non-publishing metadata for internal use) --\u003cbr\u003eReported by: Amazon Web Services\u003cbr\u003eFixed by: Matt Caswell"
}
],
"value": "Issue summary: Receiving a DTLS record for a future epoch while a handshake\nis in progress causes OpenSSL to buffer far more memory than the record\nitself requires.\n\nImpact summary: A peer can use a small amount of network traffic to make an\nOpenSSL DTLS endpoint retain a disproportionately large amount of memory,\nwhich may lead to a Denial of Service.\n\nCWE: CWE-405: Asymmetric Resource Consumption (Amplification)\n\nDescription: While a DTLS handshake is in progress, a peer may legitimately\nhave already moved on to the next epoch (for example, having sent its\nChangeCipherSpec and Finished messages) before the local endpoint has\nprocessed the same transition, typically because of reordering on the\nunderlying UDP transport. OpenSSL buffers such early records so that they\ncan be processed once the local endpoint catches up.\n\nBuffering a record currently retains the entire read buffer it arrived in,\nwhich is sized to hold the largest possible DTLS record (around 16\nkilobytes), rather than just the bytes that make up the record itself. Up\nto 100 such records may be buffered per connection. As a result, a peer\nthat sends a stream of small forged records claiming to belong to the next\nepoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of\nmemory, despite sending only a small fraction of that amount of data over\nthe network.\n\nAn attacker therefore gains a memory amplification factor of around 1200,\nand can multiply the effect across as many associations as it is able to\nopen, making this a remote memory exhaustion Denial of Service risk for\nDTLS servers. Since the memory retained per connection remains bounded,\nand any limit an application already places on the number of concurrent\nassociations also bounds the total exposure, this issue has been assessed\nas Low severity.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue as the affected code is outside\nthe OpenSSL FIPS module boundary.\n\nOpenSSL 4.0, 3.6, 3.5, 3.4, 3.0, 1.1.1 and 1.0.2 are vulnerable to this\nissue.\n\nOpenSSL 4.0 users should upgrade to OpenSSL 4.0.2.\nOpenSSL 3.6 users should upgrade to OpenSSL 3.6.4.\nOpenSSL 3.5 users should upgrade to OpenSSL 3.5.8.\nOpenSSL 3.4 users should upgrade to OpenSSL 3.4.7.\nOpenSSL 3.0 users should upgrade to OpenSSL 3.0.22.\n\nPremium support customers only:\nOpenSSL 1.1.1 users should upgrade to OpenSSL 1.1.1zi\nOpenSSL 1.0.2 users should upgrade to OpenSSL 1.0.2zr\n\nThis issue was reported on 18 May 2026 by Amazon Web Services.\nThe fix has been developed by Matt Caswell.\n\n-- cut (non-publishing metadata for internal use) --\nReported by: Amazon Web Services\nFixed by: Matt Caswell"
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-405",
"description": "CWE-405 Asymmetric Resource Consumption (Amplification)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T12:59:17.912Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260825.txt"
},
{
"name": "4.0.2 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/cc0c6710917cd5eec001b297355d2ba723505107"
},
{
"name": "3.6.4 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/f52ffc11b90737ac89083909618dc2e1f42c561c"
},
{
"name": "3.5.8 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/4808b5d64176451f3d93d87d0ac9c81a9b13fb23"
},
{
"name": "3.4.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/7110cb2f75806d0bf809eb2f90790d477900be40"
},
{
"name": "3.0.22 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Excessive Memory Use Buffering DTLS Records for a Future Epoch",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-54874",
"datePublished": "2026-08-25T12:59:17.912Z",
"dateReserved": "2026-06-16T10:18:08.635Z",
"dateUpdated": "2026-08-25T14:28:37.339Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-34180 (GCVE-0-2026-34180)
Vulnerability from cvelistv5
Published
2026-06-09 16:03
Modified
2026-06-10 07:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive
element whose content exceeds 2 gigabytes in length may cause a heap buffer
over-read on 64-bit Unix and Unix-like platforms.
Impact summary: The heap buffer over-read may crash the application (Denial of
Service) or to load into the decoded ASN.1 object contents of memory beyond the
end of the input buffer. More typically such ASN.1 elements would instead be
truncated.
An integer truncation in OpenSSL's ASN.1 decoder causes the content length of
an ASN.1 primitive element to be mishandled when it exceeds 2 gigabytes. In the
worst case the truncated length is treated as a request to scan the binary
content for a terminating zero byte, possibly causing OpenSSL to read either
less than or beyond the end of the allocated buffer.
Applications that pass attacker-supplied data to d2i_X509(), d2i_PKCS7(), or
any other d2i_* decoding function are affected. OpenSSL's own command-line
tools are not vulnerable, as data read through the BIO layer is checked before
it reaches the affected code. The issue only affects 64-bit Unix and Unix-like
platforms; 32-bit platforms and 64-bit Windows are not affected.
The FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue,
as the affected code is outside the OpenSSL FIPS module boundary.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-34180",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-09T19:00:59.503895Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-09T19:02:24.228Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.1",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.3",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.7",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
},
{
"lessThan": "3.4.6",
"status": "affected",
"version": "3.4.0",
"versionType": "semver"
},
{
"lessThan": "3.0.21",
"status": "affected",
"version": "3.0.0",
"versionType": "semver"
},
{
"lessThan": "1.1.1zh",
"status": "affected",
"version": "1.1.1",
"versionType": "custom"
},
{
"lessThan": "1.0.2zq",
"status": "affected",
"version": "1.0.2",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Frank Buss"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Viktor Dukhovni"
}
],
"datePublic": "2026-06-09T14:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive\u003cbr\u003eelement whose content exceeds 2 gigabytes in length may cause a heap buffer\u003cbr\u003eover-read on 64-bit Unix and Unix-like platforms.\u003cbr\u003e\u003cbr\u003eImpact summary: The heap buffer over-read may crash the application (Denial of\u003cbr\u003eService) or to load into the decoded ASN.1 object contents of memory beyond the\u003cbr\u003eend of the input buffer. More typically such ASN.1 elements would instead be\u003cbr\u003etruncated.\u003cbr\u003e\u003cbr\u003eAn integer truncation in OpenSSL\u0027s ASN.1 decoder causes the content length of\u003cbr\u003ean ASN.1 primitive element to be mishandled when it exceeds 2 gigabytes. In the\u003cbr\u003eworst case the truncated length is treated as a request to scan the binary\u003cbr\u003econtent for a terminating zero byte, possibly causing OpenSSL to read either\u003cbr\u003eless than or beyond the end of the allocated buffer.\u003cbr\u003e\u003cbr\u003eApplications that pass attacker-supplied data to d2i_X509(), d2i_PKCS7(), or\u003cbr\u003eany other d2i_* decoding function are affected. OpenSSL\u0027s own command-line\u003cbr\u003etools are not vulnerable, as data read through the BIO layer is checked before\u003cbr\u003eit reaches the affected code. The issue only affects 64-bit Unix and Unix-like\u003cbr\u003eplatforms; 32-bit platforms and 64-bit Windows are not affected.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue,\u003cbr\u003eas the affected code is outside the OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive\nelement whose content exceeds 2 gigabytes in length may cause a heap buffer\nover-read on 64-bit Unix and Unix-like platforms.\n\nImpact summary: The heap buffer over-read may crash the application (Denial of\nService) or to load into the decoded ASN.1 object contents of memory beyond the\nend of the input buffer. More typically such ASN.1 elements would instead be\ntruncated.\n\nAn integer truncation in OpenSSL\u0027s ASN.1 decoder causes the content length of\nan ASN.1 primitive element to be mishandled when it exceeds 2 gigabytes. In the\nworst case the truncated length is treated as a request to scan the binary\ncontent for a terminating zero byte, possibly causing OpenSSL to read either\nless than or beyond the end of the allocated buffer.\n\nApplications that pass attacker-supplied data to d2i_X509(), d2i_PKCS7(), or\nany other d2i_* decoding function are affected. OpenSSL\u0027s own command-line\ntools are not vulnerable, as data read through the BIO layer is checked before\nit reaches the affected code. The issue only affects 64-bit Unix and Unix-like\nplatforms; 32-bit platforms and 64-bit Windows are not affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue,\nas the affected code is outside the OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "CWE-125 Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T07:47:52.427Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260609.txt"
},
{
"name": "4.0.1 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/f696c73c3e61b8c502d040af62e690c060908a16"
},
{
"name": "3.6.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/d93853c42110d6319e3df07842b488cb9f7ac5ff"
},
{
"name": "3.5.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/da5d62af75f69d6fbf7803743d7c56ac75461e43"
},
{
"name": "3.4.6 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/1c6908e4fa5fa568752221d8eaf561a809751e5d"
},
{
"name": "3.0.21 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/cbe418ae978539cf14a398a207dba834c0e93e83"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Heap Buffer Over-read in ASN.1 Content Parsing",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-34180",
"datePublished": "2026-06-09T16:03:17.082Z",
"dateReserved": "2026-03-26T09:29:36.012Z",
"dateUpdated": "2026-06-10T07:47:52.427Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-76956 (GCVE-0-2026-76956)
Vulnerability from cvelistv5
Published
2026-08-20 04:22
Modified
2026-08-20 17:42
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-394 - Unexpected Status Code or Return Value
Summary
In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy's return code leads to insufficient entropy, which results in being vulnerable to hash flooding attacks, causing a denial of service via crafted XML content.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 2.8.2 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76956",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T15:05:31.739781Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T15:26:28.115Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.4",
"status": "affected",
"version": "2.8.2",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.4",
"versionStartIncluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy\u0027s return code leads to insufficient entropy, which results in being vulnerable to hash flooding attacks, causing a denial of service via crafted XML content."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-394",
"description": "CWE-394 Unexpected Status Code or Return Value",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T17:42:38.849Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1326"
},
{
"url": "https://github.com/libexpat/libexpat/pull/1329"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-76956",
"datePublished": "2026-08-20T04:22:51.381Z",
"dateReserved": "2026-08-20T04:22:50.503Z",
"dateUpdated": "2026-08-20T17:42:38.849Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-11979 (GCVE-0-2026-11979)
Vulnerability from cvelistv5
Published
2026-06-29 13:21
Modified
2026-06-29 13:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-121 - Stack-based Buffer Overflow
Summary
libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode. The usershell() function processes user input using fixed-size stack buffers without proper bounds checking.
By supplying an overly long input line, an attacker can overflow internal buffers (command, arg, and argv) during input parsing. This results in memory corruption within the stack frame.
Successful exploitation may cause a crash or potentially allow arbitrary code execution in the context of the xmlcatalog process.
This issue has been fixed in the commit c2e233fc.
NOTE:
The maintainers of this project did not agree that this issue is a vulnerability and considered it a bug.
References
| URL | Tags | |
|---|---|---|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-11979",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-29T13:59:12.311421Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-29T13:59:18.501Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"modules": [
"xmlcatalog"
],
"product": "libxml2",
"repo": "https://gitlab.gnome.org/GNOME/libxml2/",
"vendor": "xmlsoft",
"versions": [
{
"lessThanOrEqual": "2.15.3",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Micha\u0142 Majchrowicz (AFINE Team)"
},
{
"lang": "en",
"type": "finder",
"value": "Marcin Wyczechowski (AFINE Team)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode. The usershell() function processes user input using fixed-size stack buffers without proper bounds checking.\u003cbr\u003eBy supplying an overly long input line, an attacker can overflow internal buffers (command, arg, and argv) during input parsing. This results in memory corruption within the stack frame.\u003cbr\u003eSuccessful exploitation may cause a crash or potentially allow arbitrary code execution in the context of the xmlcatalog process.\u003cbr\u003e\u003cbr\u003eThis issue has been fixed in the commit c2e233fc.\u003cbr\u003e\u003cbr\u003eNOTE:\u003cbr\u003eThe maintainers of this project did not agree that this issue is a vulnerability and considered it a bug.\u003cbr\u003e"
}
],
"value": "libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode. The usershell() function processes user input using fixed-size stack buffers without proper bounds checking.\nBy supplying an overly long input line, an attacker can overflow internal buffers (command, arg, and argv) during input parsing. This results in memory corruption within the stack frame.\nSuccessful exploitation may cause a crash or potentially allow arbitrary code execution in the context of the xmlcatalog process.\n\nThis issue has been fixed in the commit c2e233fc.\n\nNOTE:\nThe maintainers of this project did not agree that this issue is a vulnerability and considered it a bug."
}
],
"impacts": [
{
"capecId": "CAPEC-253",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-253 Remote Code Inclusion"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "LOCAL",
"baseScore": 1.8,
"baseSeverity": "LOW",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "ACTIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:L/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121: Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-29T13:21:42.697Z",
"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
"shortName": "CERT-PL"
},
"references": [
{
"tags": [
"third-party-advisory"
],
"url": "https://cert.pl/en/posts/2026/06/CVE-2026-11979"
},
{
"tags": [
"patch"
],
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/commit/c2e233fc1b341685fc99621b2768b503f777a72e"
}
],
"source": {
"discovery": "EXTERNAL"
},
"tags": [
"x_open-source",
"disputed"
],
"title": "Stack-Based Buffer Overflow in libxml2",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
"assignerShortName": "CERT-PL",
"cveId": "CVE-2026-11979",
"datePublished": "2026-06-29T13:21:42.697Z",
"dateReserved": "2026-06-11T13:20:24.839Z",
"dateUpdated": "2026-06-29T13:59:18.501Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42764 (GCVE-0-2026-42764)
Vulnerability from cvelistv5
Published
2026-06-09 16:03
Modified
2026-06-10 07:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
Issue summary: Receiving a QUIC initial packet with an invalid token may
trigger a NULL pointer dereference in the OpenSSL QUIC server with
address validation disabled.
Impact summary: NULL pointer dereference typically causes abnormal termination
of the affected QUIC server process and a Denial of Service.
If the address validation is disabled in the OpenSSL QUIC server
implementation, an attacker can crash the server by sending an initial
packet with an invalid or expired token.
By default, the client address validation is enabled in the OpenSSL QUIC server
implementation, which makes the default configuration not vulnerable
to this issue. However if the SSL_LISTENER_FLAG_NO_VALIDATE is used with
the SSL_new_listener() call, the address validation is disabled making the
vulnerable code reachable.
The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this
issue, as the affected code is outside the OpenSSL FIPS module boundary.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-42764",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-09T19:36:40.693568Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-09T19:37:01.285Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.1",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.3",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.7",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Sunwoo Lee (KENTECH)"
},
{
"lang": "en",
"type": "reporter",
"value": "Hyuk Lim (KENTECH)"
},
{
"lang": "en",
"type": "reporter",
"value": "Seunghyun Yoon (KENTECH)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Sunwoo Lee (KENTECH)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Hyuk Lim (KENTECH)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Seunghyun Yoon (KENTECH)"
}
],
"datePublic": "2026-06-09T14:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: Receiving a QUIC initial packet with an invalid token may\u003cbr\u003etrigger a NULL pointer dereference in the OpenSSL QUIC server with\u003cbr\u003eaddress validation disabled.\u003cbr\u003e\u003cbr\u003eImpact summary: NULL pointer dereference typically causes abnormal termination\u003cbr\u003eof the affected QUIC server process and a Denial of Service.\u003cbr\u003e\u003cbr\u003eIf the address validation is disabled in the OpenSSL QUIC server\u003cbr\u003eimplementation, an attacker can crash the server by sending an initial\u003cbr\u003epacket with an invalid or expired token.\u003cbr\u003e\u003cbr\u003eBy default, the client address validation is enabled in the OpenSSL QUIC server\u003cbr\u003eimplementation, which makes the default configuration not vulnerable\u003cbr\u003eto this issue. However if the SSL_LISTENER_FLAG_NO_VALIDATE is used with\u003cbr\u003ethe SSL_new_listener() call, the address validation is disabled making the\u003cbr\u003evulnerable code reachable.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\u003cbr\u003eissue, as the affected code is outside the OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: Receiving a QUIC initial packet with an invalid token may\ntrigger a NULL pointer dereference in the OpenSSL QUIC server with\naddress validation disabled.\n\nImpact summary: NULL pointer dereference typically causes abnormal termination\nof the affected QUIC server process and a Denial of Service.\n\nIf the address validation is disabled in the OpenSSL QUIC server\nimplementation, an attacker can crash the server by sending an initial\npacket with an invalid or expired token.\n\nBy default, the client address validation is enabled in the OpenSSL QUIC server\nimplementation, which makes the default configuration not vulnerable\nto this issue. However if the SSL_LISTENER_FLAG_NO_VALIDATE is used with\nthe SSL_new_listener() call, the address validation is disabled making the\nvulnerable code reachable.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Moderate"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T07:47:58.940Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260609.txt"
},
{
"name": "4.0.1 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/bf29a458c1a231eca87e384c62b9c2553fa57a91"
},
{
"name": "3.6.3 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/a45a0aba8095682c88ff4fc4a784892b8c6f0677"
},
{
"name": "3.5.7 git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/5e3ed291b8af0b03d5d3b9e56a1da69a187e9729"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "NULL Pointer Dereference in QUIC Server Initial Packet Handling",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-42764",
"datePublished": "2026-06-09T16:03:25.161Z",
"dateReserved": "2026-04-29T09:22:27.967Z",
"dateUpdated": "2026-06-10T07:47:58.940Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-14456 (GCVE-0-2026-14456)
Vulnerability from cvelistv5
Published
2026-08-13 13:55
Modified
2026-08-13 17:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes
valid QUIC Initial packets for unknown destination connection IDs, it
can allocate and queue new incoming channels without enforcing any limit.
Impact summary: A remote peer that can make many Initial packets reach the
server listener faster than the application accepts connections, can cause the
memory allocated to store the per-channel state to grow without any limits,
potentially making the QUIC listener unavailable and causing Denial of Service.
CWE: CWE-770: Allocation of Resources Without Limits or Throttling
Description: The function that handles inbound QUIC packets uses
Connection-Id from the packet header to find an existing connection
(QUIC channel). If no existing connection is found and the packet
type is INITIAL, the function treats the packet as a new connection. It
allocates a new channel object and inserts it into a queue where it
waits to be accepted by the local application with SSL_accept(3ossl).
The memory occupied by these initial channel objects may grow
without bounds if the application is not able to call SSL_accept()
frequently enough to serve these inbound connection requests.
The issue is present since OpenSSL 3.5 when the QUIC server implementation
was added.
The fix introduces a limit for pending connections. The default limit is set
to 256 pending connections (waiting to be accepted by the local application).
Applications may change the default by calling SSL_set_value_uint(3ossl).
FIPS impact: no
The FIPS module is not affected as the QUIC implementation is outside of
the OpenSSL FIPS module boundary.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-08-13T16:18:19.434Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/08/13/4"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-14456",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-13T17:41:23.819585Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-13T17:41:29.420Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"lessThan": "4.0.2",
"status": "affected",
"version": "4.0.0",
"versionType": "semver"
},
{
"lessThan": "3.6.4",
"status": "affected",
"version": "3.6.0",
"versionType": "semver"
},
{
"lessThan": "3.5.8",
"status": "affected",
"version": "3.5.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Filipe Casal (Trail of Bits)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Alexandr Nedvedicky"
}
],
"datePublic": "2026-08-13T07:00:13.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes\u003cbr\u003evalid QUIC Initial packets for unknown destination connection IDs, it\u003cbr\u003ecan allocate and queue new incoming channels without enforcing any limit.\u003cbr\u003e\u003cbr\u003eImpact summary: A remote peer that can make many Initial packets reach the\u003cbr\u003eserver listener faster than the application accepts connections, can cause the\u003cbr\u003ememory allocated to store the per-channel state to grow without any limits,\u003cbr\u003epotentially making the QUIC listener unavailable and causing Denial of Service.\u003cbr\u003e\u003cbr\u003eCWE: CWE-770: Allocation of Resources Without Limits or Throttling\u003cbr\u003e\u003cbr\u003eDescription: The function that handles inbound QUIC packets uses\u003cbr\u003eConnection-Id from the packet header to find an existing connection\u003cbr\u003e(QUIC channel). If no existing connection is found and the packet\u003cbr\u003etype is INITIAL, the function treats the packet as a new connection. It\u003cbr\u003eallocates a new channel object and inserts it into a queue where it\u003cbr\u003ewaits to be accepted by the local application with SSL_accept(3ossl).\u003cbr\u003eThe memory occupied by these initial channel objects may grow\u003cbr\u003ewithout bounds if the application is not able to call SSL_accept()\u003cbr\u003efrequently enough to serve these inbound connection requests.\u003cbr\u003e\u003cbr\u003eThe issue is present since OpenSSL 3.5 when the QUIC server implementation\u003cbr\u003ewas added.\u003cbr\u003e\u003cbr\u003eThe fix introduces a limit for pending connections. The default limit is set\u003cbr\u003eto 256 pending connections (waiting to be accepted by the local application).\u003cbr\u003eApplications may change the default by calling SSL_set_value_uint(3ossl).\u003cbr\u003e\u003cbr\u003eFIPS impact: no\u003cbr\u003eThe FIPS module is not affected as the QUIC implementation is outside of\u003cbr\u003ethe OpenSSL FIPS module boundary."
}
],
"value": "Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes\nvalid QUIC Initial packets for unknown destination connection IDs, it\ncan allocate and queue new incoming channels without enforcing any limit.\n\nImpact summary: A remote peer that can make many Initial packets reach the\nserver listener faster than the application accepts connections, can cause the\nmemory allocated to store the per-channel state to grow without any limits,\npotentially making the QUIC listener unavailable and causing Denial of Service.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: The function that handles inbound QUIC packets uses\nConnection-Id from the packet header to find an existing connection\n(QUIC channel). If no existing connection is found and the packet\ntype is INITIAL, the function treats the packet as a new connection. It\nallocates a new channel object and inserts it into a queue where it\nwaits to be accepted by the local application with SSL_accept(3ossl).\nThe memory occupied by these initial channel objects may grow\nwithout bounds if the application is not able to call SSL_accept()\nfrequently enough to serve these inbound connection requests.\n\nThe issue is present since OpenSSL 3.5 when the QUIC server implementation\nwas added.\n\nThe fix introduces a limit for pending connections. The default limit is set\nto 256 pending connections (waiting to be accepted by the local application).\nApplications may change the default by calling SSL_set_value_uint(3ossl).\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."
}
],
"metrics": [
{
"format": "other",
"other": {
"content": {
"text": "Low"
},
"type": "https://openssl-library.org/policies/general/security-policy/"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-13T13:55:52.370Z",
"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"shortName": "openssl"
},
"references": [
{
"name": "OpenSSL Advisory",
"tags": [
"vendor-advisory"
],
"url": "https://openssl-library.org/news/secadv/20260813.txt"
},
{
"name": "4.0 branch git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/f2f1465f2d2e5c61dfeac4d20fd093797d821139"
},
{
"name": "3.6 branch git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/4084152e040329ca0194c4c1750b9b46d00a5b6b"
},
{
"name": "3.5 branch git commit",
"tags": [
"patch"
],
"url": "https://github.com/openssl/openssl/commit/08e7756c3900bcfd77a720e7b74e27d6e4ed01a9"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Unbounded Memory Growth in QUIC Server Incoming Channel Queue",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2026-14456",
"datePublished": "2026-08-13T13:55:52.370Z",
"dateReserved": "2026-07-02T08:35:57.518Z",
"dateUpdated": "2026-08-13T17:41:29.420Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-8286 (GCVE-0-2026-8286)
Vulnerability from cvelistv5
Published
2026-07-03 06:14
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-295 - Improper Certificate Validation
Summary
A vulnerability exists where a new transfer that uses STARTTLS to upgrade the
connection might reuse an existing live connection even though the TLS
configuration mismatches so it should not.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.30.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-8286",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T17:33:16.174641Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T17:33:50.416Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3718195"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.30.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "a86efdd7ca5433de9231e650f18247de8319ad16",
"status": "affected",
"version": "a1701eea289fe7ea80651f801cf992838a491dde",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
},
{
"status": "affected",
"version": "7.32.0"
},
{
"status": "affected",
"version": "7.31.0"
},
{
"status": "affected",
"version": "7.30.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Andrew Nesbitt (powered by Mythos)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Stefan Eissing"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability exists where a new transfer that uses STARTTLS to upgrade the\nconnection might reuse an existing live connection even though the TLS\nconfiguration mismatches so it should not."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-295",
"description": "Improper Certificate Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:17.789Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-8286.json"
},
{
"url": "https://curl.se/docs/CVE-2026-8286.html"
},
{
"url": "https://hackerone.com/reports/3718195"
}
],
"title": "wrong STARTTLS connection reuse",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.30.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "a1701eea289fe7ea80651f801cf992838a491dde"
},
{
"fixed": "a86efdd7ca5433de9231e650f18247de8319ad16"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0",
"7.32.0",
"7.31.0",
"7.30.0"
]
}
],
"aliases": [
"CVE-2026-8286"
],
"credits": [
{
"name": "Andrew Nesbitt (powered by Mythos)",
"type": "finder"
},
{
"name": "Stefan Eissing",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Improper Certificate Validation",
"id": "CWE-295"
},
"URL": "https://curl.se/docs/CVE-2026-8286.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3718195",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-8286.html"
},
"details": "A vulnerability exists where a new transfer that uses STARTTLS to upgrade the\nconnection might reuse an existing live connection even though the TLS\nconfiguration mismatches so it should not.",
"id": "CURL-CVE-2026-8286",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "wrong STARTTLS connection reuse"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-8286",
"datePublished": "2026-07-03T06:14:17.541Z",
"dateReserved": "2026-05-11T07:06:37.906Z",
"dateUpdated": "2026-09-15T06:03:17.789Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-7009 (GCVE-0-2026-7009)
Vulnerability from cvelistv5
Published
2026-05-13 08:28
Modified
2026-05-13 14:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
When curl is told to use the Certificate Status Request TLS extension, often
referred to as *OCSP stapling*, to verify that the server certificate is
valid, it fails to detect OCSP problems and instead wrongly consider the
response as fine.
References
Impacted products
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-05-13T09:05:48.665Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/04/29/12"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-7009",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T14:20:11.436717Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T14:20:33.908Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3694390"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThanOrEqual": "8.19.0",
"status": "affected",
"version": "8.19.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.18.0",
"status": "affected",
"version": "8.18.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.17.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Carlos Carrillo"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Stefan Eissing"
}
],
"descriptions": [
{
"lang": "en",
"value": "When curl is told to use the Certificate Status Request TLS extension, often\nreferred to as *OCSP stapling*, to verify that the server certificate is\nvalid, it fails to detect OCSP problems and instead wrongly consider the\nresponse as fine."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-295 Improper Certificate Validation",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T08:28:53.697Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"name": "json",
"url": "https://curl.se/docs/CVE-2026-7009.json"
},
{
"name": "www",
"url": "https://curl.se/docs/CVE-2026-7009.html"
},
{
"name": "issue",
"url": "https://hackerone.com/reports/3694390"
}
],
"title": "OCSP stapling bypass with Apple SecTrust"
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-7009",
"datePublished": "2026-05-13T08:28:53.697Z",
"dateReserved": "2026-04-25T08:37:24.989Z",
"dateUpdated": "2026-05-13T14:20:33.908Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56411 (GCVE-0-2026-56411)
Vulnerability from cvelistv5
Published
2026-06-21 15:56
Modified
2026-06-22 16:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
xmlwf in libexpat before 2.8.2 has an integer overflow in endDoctypeDecl via NOTATION declarations.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56411",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T16:31:23.529292Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T16:31:30.518Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "xmlwf in libexpat before 2.8.2 has an integer overflow in endDoctypeDecl via NOTATION declarations."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-21T15:56:42.729Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1263"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56411",
"datePublished": "2026-06-21T15:56:42.729Z",
"dateReserved": "2026-06-21T15:56:42.365Z",
"dateUpdated": "2026-06-22T16:31:30.518Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-11586 (GCVE-0-2026-11586)
Vulnerability from cvelistv5
Published
2026-07-03 06:13
Modified
2026-09-15 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
By default, curl automatically responds to WebSocket PING frames. Because curl
lacks an upper bound on memory allocation for unacknowledged frames, a
malicious server can exhaust all available memory by flooding curl with rapid,
sequential PING messages.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-11586",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T15:16:22.568075Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T15:16:27.052Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.16.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "849317ff5c5a5e13f50ec3d001e46ddffa77d8a4",
"status": "affected",
"version": "0b091328773c64e23f5c4739da74527093c6a5ab",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "evergarden1123 on hackerone (AntAISecurityLab)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Stefan Eissing"
}
],
"descriptions": [
{
"lang": "en",
"value": "By default, curl automatically responds to WebSocket PING frames. Because curl\nlacks an upper bound on memory allocation for unacknowledged frames, a\nmalicious server can exhaust all available memory by flooding curl with rapid,\nsequential PING messages."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:41.195Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-11586.json"
},
{
"url": "https://curl.se/docs/CVE-2026-11586.html"
},
{
"url": "https://hackerone.com/reports/3788931"
}
],
"title": "WS Auto-PONG memory exhaustion",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "8.16.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "0b091328773c64e23f5c4739da74527093c6a5ab"
},
{
"fixed": "849317ff5c5a5e13f50ec3d001e46ddffa77d8a4"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0"
]
}
],
"aliases": [
"CVE-2026-11586"
],
"credits": [
{
"name": "evergarden1123 on hackerone (AntAISecurityLab)",
"type": "finder"
},
{
"name": "Stefan Eissing",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Allocation of Resources Without Limits or Throttling",
"id": "CWE-770"
},
"URL": "https://curl.se/docs/CVE-2026-11586.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3788931",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-11586.html"
},
"details": "By default, curl automatically responds to WebSocket PING frames. Because curl\nlacks an upper bound on memory allocation for unacknowledged frames, a\nmalicious server can exhaust all available memory by flooding curl with rapid,\nsequential PING messages.",
"id": "CURL-CVE-2026-11586",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "WS Auto-PONG memory exhaustion"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-11586",
"datePublished": "2026-07-03T06:13:04.448Z",
"dateReserved": "2026-06-08T12:17:42.037Z",
"dateUpdated": "2026-09-15T06:02:41.195Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-86138 (GCVE-0-2026-86138)
Vulnerability from cvelistv5
Published
2026-09-05 04:21
Modified
2026-09-08 18:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer overflow.
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-86138",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-08T18:04:19.094572Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-08T18:04:58.145Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libxml2",
"vendor": "xmlsoft",
"versions": [
{
"lessThan": "2.15.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.15.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer overflow."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-05T04:21:53.127Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"
},
{
"url": "https://github.com/GNOME/libxml2/commit/a4cba4b5b5a8c42e155ed42d2d2a44955465a2e4"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-86138",
"datePublished": "2026-09-05T04:21:53.127Z",
"dateReserved": "2026-09-05T04:21:52.780Z",
"dateUpdated": "2026-09-08T18:04:58.145Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-9545 (GCVE-0-2026-9545)
Vulnerability from cvelistv5
Published
2026-07-03 06:17
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Summary
In this scenario, libcurl first uses a proper HTTP/3 server for the initial
transfers, and when it makes a second transfer to the same site it has been
replaced by the attacker's impostor machine - without a valid certificate.
When libcurl returns to the hostname the second time with a cached SSL session
(`CURLOPT_SSL_SESSIONID_CACHE` is not disabled) and early data enabled (the
`CURLSSLOPT_EARLYDATA` bit is set in `CURLOPT_SSL_OPTIONS`), libcurl might
send off the second request's bytes on that new connection *before* enforcing
the certificate verification failure. Potentially leaking sensitive
information.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-9545",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T16:52:42.898546Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T16:53:23.396Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3752888"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "8.11.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "7b9613fa9b1a5e04301a3920eef58e8138dad05e",
"status": "affected",
"version": "962097b8dd44ed5b9e7984bc1cdffdbdd566857f",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Eunsoo Kim (Autonomous Code Security team at Microsoft)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Stefan Eissing"
}
],
"descriptions": [
{
"lang": "en",
"value": "In this scenario, libcurl first uses a proper HTTP/3 server for the initial\ntransfers, and when it makes a second transfer to the same site it has been\nreplaced by the attacker\u0027s impostor machine - without a valid certificate.\n\nWhen libcurl returns to the hostname the second time with a cached SSL session\n(`CURLOPT_SSL_SESSIONID_CACHE` is not disabled) and early data enabled (the\n`CURLSSLOPT_EARLYDATA` bit is set in `CURLOPT_SSL_OPTIONS`), libcurl might\nsend off the second request\u0027s bytes on that new connection *before* enforcing\nthe certificate verification failure. Potentially leaking sensitive\ninformation."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:31.804Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-9545.json"
},
{
"url": "https://curl.se/docs/CVE-2026-9545.html"
},
{
"url": "https://hackerone.com/reports/3752888"
}
],
"title": "exposing HTTP/3 early data",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "8.11.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "962097b8dd44ed5b9e7984bc1cdffdbdd566857f"
},
{
"fixed": "7b9613fa9b1a5e04301a3920eef58e8138dad05e"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0"
]
}
],
"aliases": [
"CVE-2026-9545"
],
"credits": [
{
"name": "Eunsoo Kim (Autonomous Code Security team at Microsoft)",
"type": "finder"
},
{
"name": "Stefan Eissing",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Exposure of Sensitive Information to an Unauthorized Actor",
"id": "CWE-200"
},
"URL": "https://curl.se/docs/CVE-2026-9545.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3752888",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-9545.html"
},
"details": "In this scenario, libcurl first uses a proper HTTP/3 server for the initial\ntransfers, and when it makes a second transfer to the same site it has been\nreplaced by the attacker\u0027s impostor machine - without a valid certificate.\n\nWhen libcurl returns to the hostname the second time with a cached SSL session\n(`CURLOPT_SSL_SESSIONID_CACHE` is not disabled) and early data enabled (the\n`CURLSSLOPT_EARLYDATA` bit is set in `CURLOPT_SSL_OPTIONS`), libcurl might\nsend off the second request\u0027s bytes on that new connection *before* enforcing\nthe certificate verification failure. Potentially leaking sensitive\ninformation.",
"id": "CURL-CVE-2026-9545",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "exposing HTTP/3 early data"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-9545",
"datePublished": "2026-07-03T06:17:55.931Z",
"dateReserved": "2026-05-26T06:45:08.680Z",
"dateUpdated": "2026-09-15T06:03:31.804Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-8458 (GCVE-0-2026-8458)
Vulnerability from cvelistv5
Published
2026-07-03 06:14
Modified
2026-09-15 06:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-488 - Exposure of Data Element to Wrong Session
Summary
libcurl might in some circumstances reuse the wrong connection when asked to
do Negotiate-authenticated ones, even when they are set to use different
"services".
libcurl features a pool of recent connections so that subsequent requests can
reuse an existing connection to avoid overhead.
When reusing a connection a range of criteria must be met. Due to a logical
error in the code, a request that was issued by an application could
wrongfully reuse an existing connection to the same server that was
authenticated using different services.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.43.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-8458",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T17:31:14.007899Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T17:32:06.018Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3721183"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.43.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "5e99b73cf441d9c369768b9cd48b5389b9a2503d",
"status": "affected",
"version": "97c272e5d173ad5f706443e2477f0a84f0044edd",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Muhamad Arga Reksapati"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Stefan Eissing"
}
],
"descriptions": [
{
"lang": "en",
"value": "libcurl might in some circumstances reuse the wrong connection when asked to\ndo Negotiate-authenticated ones, even when they are set to use different\n\"services\".\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different services."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-488",
"description": "Exposure of Data Element to Wrong Session",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:03:19.330Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-8458.json"
},
{
"url": "https://curl.se/docs/CVE-2026-8458.html"
},
{
"url": "https://hackerone.com/reports/3721183"
}
],
"title": "wrong reuse for different services",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.43.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "97c272e5d173ad5f706443e2477f0a84f0044edd"
},
{
"fixed": "5e99b73cf441d9c369768b9cd48b5389b9a2503d"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0"
]
}
],
"aliases": [
"CVE-2026-8458"
],
"credits": [
{
"name": "Muhamad Arga Reksapati",
"type": "finder"
},
{
"name": "Stefan Eissing",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Exposure of Data Element to Wrong Session",
"id": "CWE-488"
},
"URL": "https://curl.se/docs/CVE-2026-8458.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3721183",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-8458.html"
},
"details": "libcurl might in some circumstances reuse the wrong connection when asked to\ndo Negotiate-authenticated ones, even when they are set to use different\n\"services\".\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different services.",
"id": "CURL-CVE-2026-8458",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "wrong reuse for different services"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-8458",
"datePublished": "2026-07-03T06:14:42.258Z",
"dateReserved": "2026-05-13T08:33:36.632Z",
"dateUpdated": "2026-09-15T06:03:19.330Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-0990 (GCVE-0-2026-0990)
Vulnerability from cvelistv5
Published
2026-01-15 14:20
Modified
2026-09-01 11:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-674 - Uncontrolled Recursion
Summary
A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references itself. A remote attacker could exploit this configuration-dependent issue by providing a specially crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a segmentation fault, causing a Denial of Service (DoS) by crashing affected applications.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Hardened Images |
Unaffected: 2.15.2-0.3.hum1 < * cpe:/a:redhat:hummingbird:1 |
||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-0990",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-15T16:31:20.247968Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-01-15T16:39:20.891Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "libxml2-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2.15.2-0.3.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_core_services:1"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat JBoss Core Services",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Nick Wellnhofer for reporting this issue."
}
],
"datePublic": "2026-01-15T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references itself. A remote attacker could exploit this configuration-dependent issue by providing a specially crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a segmentation fault, causing a Denial of Service (DoS) by crashing affected applications."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Moderate"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-674",
"description": "Uncontrolled Recursion",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-01T11:54:54.802Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:7519",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7519"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-0990"
},
{
"name": "RHBZ#2429959",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2429959"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/1018"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-01-15T13:15:23.187Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-01-15T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Libxml2: libxml2: denial of service via uncontrolled recursion in xml catalog processing",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-674: Uncontrolled Recursion"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-0990",
"datePublished": "2026-01-15T14:20:06.515Z",
"dateReserved": "2026-01-15T13:15:10.756Z",
"dateUpdated": "2026-09-01T11:54:54.802Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-3784 (GCVE-0-2026-3784)
Vulnerability from cvelistv5
Published
2026-03-11 10:09
Modified
2026-09-15 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Summary
curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a
server, even if the new request uses different credentials for the HTTP proxy.
The proper behavior is to create or use a separate connection.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.7.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-03-11T10:16:32.844Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/03/11/3"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-3784",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-11T15:48:38.785522Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-305",
"description": "CWE-305 Authentication Bypass by Primary Weakness",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-11T15:48:41.725Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "RUGGEDCOM RST2428P",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V4.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-02T13:00:43.860Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.7.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.19.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "5f13a7645e565c5c1a06f3ef86e97afb856fb364",
"status": "affected",
"version": "a1d6ad26100bc493c7b04f1301b1634b7f5aa8b4",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
},
{
"status": "affected",
"version": "7.32.0"
},
{
"status": "affected",
"version": "7.31.0"
},
{
"status": "affected",
"version": "7.30.0"
},
{
"status": "affected",
"version": "7.29.0"
},
{
"status": "affected",
"version": "7.28.1"
},
{
"status": "affected",
"version": "7.28.0"
},
{
"status": "affected",
"version": "7.27.0"
},
{
"status": "affected",
"version": "7.26.0"
},
{
"status": "affected",
"version": "7.25.0"
},
{
"status": "affected",
"version": "7.24.0"
},
{
"status": "affected",
"version": "7.23.1"
},
{
"status": "affected",
"version": "7.23.0"
},
{
"status": "affected",
"version": "7.22.0"
},
{
"status": "affected",
"version": "7.21.7"
},
{
"status": "affected",
"version": "7.21.6"
},
{
"status": "affected",
"version": "7.21.5"
},
{
"status": "affected",
"version": "7.21.4"
},
{
"status": "affected",
"version": "7.21.3"
},
{
"status": "affected",
"version": "7.21.2"
},
{
"status": "affected",
"version": "7.21.1"
},
{
"status": "affected",
"version": "7.21.0"
},
{
"status": "affected",
"version": "7.20.1"
},
{
"status": "affected",
"version": "7.20.0"
},
{
"status": "affected",
"version": "7.19.7"
},
{
"status": "affected",
"version": "7.19.6"
},
{
"status": "affected",
"version": "7.19.5"
},
{
"status": "affected",
"version": "7.19.4"
},
{
"status": "affected",
"version": "7.19.3"
},
{
"status": "affected",
"version": "7.19.2"
},
{
"status": "affected",
"version": "7.19.1"
},
{
"status": "affected",
"version": "7.19.0"
},
{
"status": "affected",
"version": "7.18.2"
},
{
"status": "affected",
"version": "7.18.1"
},
{
"status": "affected",
"version": "7.18.0"
},
{
"status": "affected",
"version": "7.17.1"
},
{
"status": "affected",
"version": "7.17.0"
},
{
"status": "affected",
"version": "7.16.4"
},
{
"status": "affected",
"version": "7.16.3"
},
{
"status": "affected",
"version": "7.16.2"
},
{
"status": "affected",
"version": "7.16.1"
},
{
"status": "affected",
"version": "7.16.0"
},
{
"status": "affected",
"version": "7.15.5"
},
{
"status": "affected",
"version": "7.15.4"
},
{
"status": "affected",
"version": "7.15.3"
},
{
"status": "affected",
"version": "7.15.2"
},
{
"status": "affected",
"version": "7.15.1"
},
{
"status": "affected",
"version": "7.15.0"
},
{
"status": "affected",
"version": "7.14.1"
},
{
"status": "affected",
"version": "7.14.0"
},
{
"status": "affected",
"version": "7.13.2"
},
{
"status": "affected",
"version": "7.13.1"
},
{
"status": "affected",
"version": "7.13.0"
},
{
"status": "affected",
"version": "7.12.3"
},
{
"status": "affected",
"version": "7.12.2"
},
{
"status": "affected",
"version": "7.12.1"
},
{
"status": "affected",
"version": "7.12.0"
},
{
"status": "affected",
"version": "7.11.2"
},
{
"status": "affected",
"version": "7.11.1"
},
{
"status": "affected",
"version": "7.11.0"
},
{
"status": "affected",
"version": "7.10.8"
},
{
"status": "affected",
"version": "7.10.7"
},
{
"status": "affected",
"version": "7.10.6"
},
{
"status": "affected",
"version": "7.10.5"
},
{
"status": "affected",
"version": "7.10.4"
},
{
"status": "affected",
"version": "7.10.3"
},
{
"status": "affected",
"version": "7.10.2"
},
{
"status": "affected",
"version": "7.10.1"
},
{
"status": "affected",
"version": "7.10"
},
{
"status": "affected",
"version": "7.9.8"
},
{
"status": "affected",
"version": "7.9.7"
},
{
"status": "affected",
"version": "7.9.6"
},
{
"status": "affected",
"version": "7.9.5"
},
{
"status": "affected",
"version": "7.9.4"
},
{
"status": "affected",
"version": "7.9.3"
},
{
"status": "affected",
"version": "7.9.2"
},
{
"status": "affected",
"version": "7.9.1"
},
{
"status": "affected",
"version": "7.9"
},
{
"status": "affected",
"version": "7.8.1"
},
{
"status": "affected",
"version": "7.8"
},
{
"status": "affected",
"version": "7.7.3"
},
{
"status": "affected",
"version": "7.7.2"
},
{
"status": "affected",
"version": "7.7.1"
},
{
"status": "affected",
"version": "7.7"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Muhamad Arga Reksapati (HackerOne: nobcoder)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Stefan Eissing"
}
],
"descriptions": [
{
"lang": "en",
"value": "curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a\nserver, even if the new request uses different credentials for the HTTP proxy.\nThe proper behavior is to create or use a separate connection."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-305",
"description": "Authentication Bypass by Primary Weakness",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:54.443Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-3784.json"
},
{
"url": "https://curl.se/docs/CVE-2026-3784.html"
},
{
"url": "https://hackerone.com/reports/3584903"
}
],
"title": "wrong proxy connection reuse with credentials",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.7.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.19.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "a1d6ad26100bc493c7b04f1301b1634b7f5aa8b4"
},
{
"fixed": "5f13a7645e565c5c1a06f3ef86e97afb856fb364"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0",
"7.32.0",
"7.31.0",
"7.30.0",
"7.29.0",
"7.28.1",
"7.28.0",
"7.27.0",
"7.26.0",
"7.25.0",
"7.24.0",
"7.23.1",
"7.23.0",
"7.22.0",
"7.21.7",
"7.21.6",
"7.21.5",
"7.21.4",
"7.21.3",
"7.21.2",
"7.21.1",
"7.21.0",
"7.20.1",
"7.20.0",
"7.19.7",
"7.19.6",
"7.19.5",
"7.19.4",
"7.19.3",
"7.19.2",
"7.19.1",
"7.19.0",
"7.18.2",
"7.18.1",
"7.18.0",
"7.17.1",
"7.17.0",
"7.16.4",
"7.16.3",
"7.16.2",
"7.16.1",
"7.16.0",
"7.15.5",
"7.15.4",
"7.15.3",
"7.15.2",
"7.15.1",
"7.15.0",
"7.14.1",
"7.14.0",
"7.13.2",
"7.13.1",
"7.13.0",
"7.12.3",
"7.12.2",
"7.12.1",
"7.12.0",
"7.11.2",
"7.11.1",
"7.11.0",
"7.10.8",
"7.10.7",
"7.10.6",
"7.10.5",
"7.10.4",
"7.10.3",
"7.10.2",
"7.10.1",
"7.10",
"7.9.8",
"7.9.7",
"7.9.6",
"7.9.5",
"7.9.4",
"7.9.3",
"7.9.2",
"7.9.1",
"7.9",
"7.8.1",
"7.8",
"7.7.3",
"7.7.2",
"7.7.1",
"7.7"
]
}
],
"aliases": [
"CVE-2026-3784"
],
"credits": [
{
"name": "Muhamad Arga Reksapati (HackerOne: nobcoder)",
"type": "finder"
},
{
"name": "Stefan Eissing",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Authentication Bypass by Primary Weakness",
"id": "CWE-305"
},
"URL": "https://curl.se/docs/CVE-2026-3784.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3584903",
"last_affected": "8.18.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-3784.html"
},
"details": "curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a\nserver, even if the new request uses different credentials for the HTTP proxy.\nThe proper behavior is to create or use a separate connection.",
"id": "CURL-CVE-2026-3784",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-03-11T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "wrong proxy connection reuse with credentials"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-3784",
"datePublished": "2026-03-11T10:09:21.418Z",
"dateReserved": "2026-03-08T05:09:52.279Z",
"dateUpdated": "2026-09-15T06:02:54.443Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-11352 (GCVE-0-2026-11352)
Vulnerability from cvelistv5
Published
2026-07-03 06:12
Modified
2026-09-15 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Summary
An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server
to trigger a remote denial of service against a curl or libcurl client.
Because the helper function discards zero-length UDP datagrams before counting
them toward the per-call packet budget, a connected QUIC peer can continuously
stream empty datagrams to indefinitely stall the client.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-11352",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T18:26:03.249042Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T18:27:49.432Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://hackerone.com/reports/3783438"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.20.1",
"status": "affected",
"version": "8.18.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "56eca2afb4806f1032872fa97d1834b3c1385276",
"status": "affected",
"version": "6a3d0b6d631d5e9bec797306b5b41a9f440a088d",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.20.0"
},
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "vectorqueue on hackerone (AntAISecurityLab)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Stefan Eissing"
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue in curl\u2019s QUIC UDP receive function allows a malicious HTTP/3 server\nto trigger a remote denial of service against a curl or libcurl client.\nBecause the helper function discards zero-length UDP datagrams before counting\nthem toward the per-call packet budget, a connected QUIC peer can continuously\nstream empty datagrams to indefinitely stall the client."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-835",
"description": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:38.244Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-11352.json"
},
{
"url": "https://curl.se/docs/CVE-2026-11352.html"
},
{
"url": "https://hackerone.com/reports/3783438"
}
],
"title": "QUIC zero-length UDP datagrams busy-loop",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "8.18.0"
},
{
"fixed": "8.20.1"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "6a3d0b6d631d5e9bec797306b5b41a9f440a088d"
},
{
"fixed": "56eca2afb4806f1032872fa97d1834b3c1385276"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.20.0",
"8.19.0",
"8.18.0"
]
}
],
"aliases": [
"CVE-2026-11352"
],
"credits": [
{
"name": "vectorqueue on hackerone (AntAISecurityLab)",
"type": "finder"
},
{
"name": "Stefan Eissing",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
"id": "CWE-835"
},
"URL": "https://curl.se/docs/CVE-2026-11352.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3783438",
"last_affected": "8.20.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-11352.html"
},
"details": "An issue in curl\u2019s QUIC UDP receive function allows a malicious HTTP/3 server\nto trigger a remote denial of service against a curl or libcurl client.\nBecause the helper function discards zero-length UDP datagrams before counting\nthem toward the per-call packet budget, a connected QUIC peer can continuously\nstream empty datagrams to indefinitely stall the client.",
"id": "CURL-CVE-2026-11352",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-06-24T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "QUIC zero-length UDP datagrams busy-loop"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-11352",
"datePublished": "2026-07-03T06:12:10.777Z",
"dateReserved": "2026-06-05T11:23:43.389Z",
"dateUpdated": "2026-09-15T06:02:38.244Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-77214 (GCVE-0-2026-77214)
Vulnerability from cvelistv5
Published
2026-10-07 14:35
Modified
2026-10-27 10:14
Severity ?
8.3 (High) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
libexpat before commit 13c5f63 contains a heap buffer over-read vulnerability in xmlparse.c. XML_ParseBuffer advances the parse buffer end with parser->m_bufferEnd += len using a caller-supplied length that is not validated against the allocated buffer size, so repeated XML_ParseBuffer calls move m_bufferEnd past the end of the heap allocation and subsequent parsing reads out of bounds. Reaching this path requires a parse buffer to already be present; otherwise XML_ParseBuffer returns XML_ERROR_NO_BUFFER. A buffer is present after a prior call to XML_GetBuffer, either directly (the common case) or indirectly through a prior XML_Parse call that allocates the buffer internally. The over-read discloses adjacent heap memory to the calling application, recovering heap pointers, libc function pointers, and code pointers sufficient to defeat ASLR and build further exploitation primitives.
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-77214",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-10T02:25:58.906885Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-10T02:26:09.470Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:github/libexpat/libexpat",
"product": "libexpat",
"repo": "https://github.com/libexpat/libexpat",
"vendor": "libexpat",
"versions": [
{
"lessThanOrEqual": "2.8.5",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "13c5f63a7f1c52c2feee3b16a1134d4fb68e9ea0",
"versionType": "git"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndIncluding": "2.8.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Fabian Wahle (Hap Security)"
},
{
"lang": "en",
"type": "finder",
"value": "Filippo Tedeschi"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulnCheck"
}
],
"datePublic": "2026-09-24T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "libexpat before commit 13c5f63 contains a heap buffer over-read vulnerability in xmlparse.c. XML_ParseBuffer advances the parse buffer end with parser-\u003em_bufferEnd += len using a caller-supplied length that is not validated against the allocated buffer size, so repeated XML_ParseBuffer calls move m_bufferEnd past the end of the heap allocation and subsequent parsing reads out of bounds. Reaching this path requires a parse buffer to already be present; otherwise XML_ParseBuffer returns XML_ERROR_NO_BUFFER. A buffer is present after a prior call to XML_GetBuffer, either directly (the common case) or indirectly through a prior XML_Parse call that allocates the buffer internally. The over-read discloses adjacent heap memory to the calling application, recovering heap pointers, libc function pointers, and code pointers sufficient to defeat ASLR and build further exploitation primitives."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 8.3,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-27T10:14:34.918Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Pull Request",
"tags": [
"issue-tracking"
],
"url": "https://github.com/libexpat/libexpat/pull/1393"
},
{
"name": "Patch Commit",
"tags": [
"patch"
],
"url": "https://github.com/libexpat/libexpat/commit/13c5f63a7f1c52c2feee3b16a1134d4fb68e9ea0"
},
{
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/libexpat-heap-buffer-over-read-in-xmlparse-c-via-xml-parsebuffer"
}
],
"source": {
"discovery": "UNKNOWN"
},
"tags": [
"x_open-source"
],
"title": "libexpat Heap Buffer Over-read in xmlparse.c via XML_ParseBuffer",
"x_generator": {
"engine": "vulncheck"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-77214",
"datePublished": "2026-10-07T14:35:42.794Z",
"dateReserved": "2026-08-20T18:25:46.943Z",
"dateUpdated": "2026-10-27T10:14:34.918Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-102633 (GCVE-0-2026-102633)
Vulnerability from cvelistv5
Published
2026-09-29 16:04
Modified
2026-09-29 16:52
Severity ?
8.2 (High) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
libexpat versions 2.7.2 through 2.8.5 contain an integer overflow vulnerability in expat_realloc() function on 32-bit platforms when computing allocation sizes. Attackers supplying malicious XML to applications parsing with vulnerable libexpat can cause heap buffer overflow, memory corruption, or denial of service.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-102633",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T16:52:16.830454Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T16:52:27.152Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat",
"versions": [
{
"lessThanOrEqual": "2.8.5",
"status": "affected",
"version": "2.7.2",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndIncluding": "2.8.5",
"versionStartIncluding": "2.7.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Filippo Tedeschi"
},
{
"lang": "en",
"type": "finder",
"value": "Matthew Fernandez"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Filippo Tedeschi"
}
],
"datePublic": "2026-09-25T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "libexpat versions 2.7.2 through 2.8.5 contain an integer overflow vulnerability in expat_realloc() function on 32-bit platforms when computing allocation sizes. Attackers supplying malicious XML to applications parsing with vulnerable libexpat can cause heap buffer overflow, memory corruption, or denial of service."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T16:04:16.738Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Pull Request #1392",
"tags": [
"issue-tracking",
"patch"
],
"url": "https://github.com/libexpat/libexpat/pull/1392"
},
{
"name": "Patch Commit",
"tags": [
"patch"
],
"url": "https://github.com/libexpat/libexpat/commit/209801d7fbaf07ab74bae8cb32dd2ab9e5846118"
},
{
"tags": [
"technical-description"
],
"url": "https://github.com/libexpat/libexpat/blob/R_2_8_5/expat/lib/xmlparse.c#L1003"
},
{
"tags": [
"product"
],
"url": "https://github.com/libexpat/libexpat"
},
{
"name": "VulnCheck Advisory: libexpat 2.7.2 through 2.8.5 Integer Overflow in expat_realloc",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/libexpat-2.7.2-through-2.8.5-integer-overflow-in-expat-realloc"
}
],
"title": "libexpat 2.7.2 through 2.8.5 Integer Overflow in expat_realloc",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-102633",
"datePublished": "2026-09-29T16:04:16.738Z",
"dateReserved": "2026-09-29T15:50:31.753Z",
"dateUpdated": "2026-09-29T16:52:27.152Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-76781 (GCVE-0-2026-76781)
Vulnerability from cvelistv5
Published
2026-09-17 15:11
Modified
2026-09-24 11:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A flaw was found in libxml2. A local user or an attacker providing a specially crafted XML catalog can trigger a NULL pointer dereference during XML catalog parsing. This occurs when a `nextCatalog` element lacks its mandatory `catalog` attribute, leading to the application crashing and causing a Denial of Service (DoS).
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Hardened Images |
Unaffected: 2.15.3-0.1.3.hum1 < * cpe:/a:redhat:hummingbird:1 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76781",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-17T17:10:17.266721Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-17T19:19:28.333Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "libxml2-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "2.15.3-0.1.3.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "unaffected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "podman",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unknown",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unknown",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "container-tools:rhel8/podman",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "podman",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "unaffected",
"packageName": "libxml2",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "podman",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "unaffected",
"packageName": "swift-lang",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "podman",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Yirou Yang for reporting this issue."
}
],
"datePublic": "2026-08-19T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in libxml2. A local user or an attacker providing a specially crafted XML catalog can trigger a NULL pointer dereference during XML catalog parsing. This occurs when a `nextCatalog` element lacks its mandatory `catalog` attribute, leading to the application crashing and causing a Denial of Service (DoS)."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Moderate"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-24T11:57:00.431Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:57604",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:57604"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-76781"
},
{
"name": "RHBZ#2519776",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519776"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/commit/c6324894"
},
{
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/442"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-19T17:05:04.484Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-08-19T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Libxml2: libxml2: null pointer dereference parsing nextcatalog without catalog attribute",
"workarounds": [
{
"lang": "en",
"value": "To mitigate this issue, avoid processing untrusted XML catalog files with applications linked against libxml2. Users should exercise caution when opening or processing XML documents from untrusted sources, as a malicious catalog could lead to application crashes. Where possible, restrict the ability of applications to load external XML catalogs, or ensure that only trusted catalog files are used."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-476: NULL Pointer Dereference"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-76781",
"datePublished": "2026-09-17T15:11:29.256Z",
"dateReserved": "2026-08-19T17:15:10.735Z",
"dateUpdated": "2026-09-24T11:57:00.431Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-56412 (GCVE-0-2026-56412)
Vulnerability from cvelistv5
Published
2026-06-21 15:58
Modified
2026-06-22 16:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
libexpat before 2.8.2 does not consider XML_TOK_DATA_CHARS in doCdataSection and thus lacks handler call depth tracking for various calls from within handlers in cases of a policy violation. Thus, a use-after-free can occur. NOTE: this issue exists because of an incomplete fix for CVE-2026-50219.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Version: 0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-56412",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T16:30:58.502417Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T16:31:06.166Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "libexpat",
"vendor": "libexpat project",
"versions": [
{
"lessThan": "2.8.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "libexpat before 2.8.2 does not consider XML_TOK_DATA_CHARS in doCdataSection and thus lacks handler call depth tracking for various calls from within handlers in cases of a policy violation. Thus, a use-after-free can occur. NOTE: this issue exists because of an incomplete fix for CVE-2026-50219."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-21T15:58:59.347Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/libexpat/libexpat/pull/1278"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-56412",
"datePublished": "2026-06-21T15:58:59.347Z",
"dateReserved": "2026-06-21T15:58:58.955Z",
"dateUpdated": "2026-06-22T16:31:06.166Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4873 (GCVE-0-2026-4873)
Vulnerability from cvelistv5
Published
2026-05-13 08:27
Modified
2026-09-15 06:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-319 - Cleartext Transmission of Sensitive Information
Summary
A vulnerability exists where a connection requiring TLS incorrectly reuses an
existing unencrypted connection from the same connection pool. If an initial
transfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request
to that same host bypasses the TLS requirement and instead transmit data
unencrypted.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl | curl |
Version: 7.20.0 ≤ Version: 8.15.0 ≤ Version: 8.17.0 ≤ |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-05-13T09:05:12.559Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/04/29/7"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4873",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T19:29:14.521822Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-319",
"description": "CWE-319 Cleartext Transmission of Sensitive Information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T19:30:04.825Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThan": "8.14.2",
"status": "affected",
"version": "7.20.0",
"versionType": "semver"
},
{
"lessThan": "8.16.1",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThan": "8.20.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"repo": "https://github.com/curl/curl.git",
"vendor": "curl",
"versions": [
{
"lessThan": "507e7be573b0a76fca597b75ff7cb27a66e7d865",
"status": "affected",
"version": "ec3bb8f727405642a471b4b1b9eb0118fc003104",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"status": "affected",
"version": "8.19.0"
},
{
"status": "affected",
"version": "8.18.0"
},
{
"status": "affected",
"version": "8.17.0"
},
{
"status": "affected",
"version": "8.16.0"
},
{
"status": "affected",
"version": "8.15.0"
},
{
"status": "affected",
"version": "8.14.1"
},
{
"status": "affected",
"version": "8.14.0"
},
{
"status": "affected",
"version": "8.13.0"
},
{
"status": "affected",
"version": "8.12.1"
},
{
"status": "affected",
"version": "8.12.0"
},
{
"status": "affected",
"version": "8.11.1"
},
{
"status": "affected",
"version": "8.11.0"
},
{
"status": "affected",
"version": "8.10.1"
},
{
"status": "affected",
"version": "8.10.0"
},
{
"status": "affected",
"version": "8.9.1"
},
{
"status": "affected",
"version": "8.9.0"
},
{
"status": "affected",
"version": "8.8.0"
},
{
"status": "affected",
"version": "8.7.1"
},
{
"status": "affected",
"version": "8.7.0"
},
{
"status": "affected",
"version": "8.6.0"
},
{
"status": "affected",
"version": "8.5.0"
},
{
"status": "affected",
"version": "8.4.0"
},
{
"status": "affected",
"version": "8.3.0"
},
{
"status": "affected",
"version": "8.2.1"
},
{
"status": "affected",
"version": "8.2.0"
},
{
"status": "affected",
"version": "8.1.2"
},
{
"status": "affected",
"version": "8.1.1"
},
{
"status": "affected",
"version": "8.1.0"
},
{
"status": "affected",
"version": "8.0.1"
},
{
"status": "affected",
"version": "8.0.0"
},
{
"status": "affected",
"version": "7.88.1"
},
{
"status": "affected",
"version": "7.88.0"
},
{
"status": "affected",
"version": "7.87.0"
},
{
"status": "affected",
"version": "7.86.0"
},
{
"status": "affected",
"version": "7.85.0"
},
{
"status": "affected",
"version": "7.84.0"
},
{
"status": "affected",
"version": "7.83.1"
},
{
"status": "affected",
"version": "7.83.0"
},
{
"status": "affected",
"version": "7.82.0"
},
{
"status": "affected",
"version": "7.81.0"
},
{
"status": "affected",
"version": "7.80.0"
},
{
"status": "affected",
"version": "7.79.1"
},
{
"status": "affected",
"version": "7.79.0"
},
{
"status": "affected",
"version": "7.78.0"
},
{
"status": "affected",
"version": "7.77.0"
},
{
"status": "affected",
"version": "7.76.1"
},
{
"status": "affected",
"version": "7.76.0"
},
{
"status": "affected",
"version": "7.75.0"
},
{
"status": "affected",
"version": "7.74.0"
},
{
"status": "affected",
"version": "7.73.0"
},
{
"status": "affected",
"version": "7.72.0"
},
{
"status": "affected",
"version": "7.71.1"
},
{
"status": "affected",
"version": "7.71.0"
},
{
"status": "affected",
"version": "7.70.0"
},
{
"status": "affected",
"version": "7.69.1"
},
{
"status": "affected",
"version": "7.69.0"
},
{
"status": "affected",
"version": "7.68.0"
},
{
"status": "affected",
"version": "7.67.0"
},
{
"status": "affected",
"version": "7.66.0"
},
{
"status": "affected",
"version": "7.65.3"
},
{
"status": "affected",
"version": "7.65.2"
},
{
"status": "affected",
"version": "7.65.1"
},
{
"status": "affected",
"version": "7.65.0"
},
{
"status": "affected",
"version": "7.64.1"
},
{
"status": "affected",
"version": "7.64.0"
},
{
"status": "affected",
"version": "7.63.0"
},
{
"status": "affected",
"version": "7.62.0"
},
{
"status": "affected",
"version": "7.61.1"
},
{
"status": "affected",
"version": "7.61.0"
},
{
"status": "affected",
"version": "7.60.0"
},
{
"status": "affected",
"version": "7.59.0"
},
{
"status": "affected",
"version": "7.58.0"
},
{
"status": "affected",
"version": "7.57.0"
},
{
"status": "affected",
"version": "7.56.1"
},
{
"status": "affected",
"version": "7.56.0"
},
{
"status": "affected",
"version": "7.55.1"
},
{
"status": "affected",
"version": "7.55.0"
},
{
"status": "affected",
"version": "7.54.1"
},
{
"status": "affected",
"version": "7.54.0"
},
{
"status": "affected",
"version": "7.53.1"
},
{
"status": "affected",
"version": "7.53.0"
},
{
"status": "affected",
"version": "7.52.1"
},
{
"status": "affected",
"version": "7.52.0"
},
{
"status": "affected",
"version": "7.51.0"
},
{
"status": "affected",
"version": "7.50.3"
},
{
"status": "affected",
"version": "7.50.2"
},
{
"status": "affected",
"version": "7.50.1"
},
{
"status": "affected",
"version": "7.50.0"
},
{
"status": "affected",
"version": "7.49.1"
},
{
"status": "affected",
"version": "7.49.0"
},
{
"status": "affected",
"version": "7.48.0"
},
{
"status": "affected",
"version": "7.47.1"
},
{
"status": "affected",
"version": "7.47.0"
},
{
"status": "affected",
"version": "7.46.0"
},
{
"status": "affected",
"version": "7.45.0"
},
{
"status": "affected",
"version": "7.44.0"
},
{
"status": "affected",
"version": "7.43.0"
},
{
"status": "affected",
"version": "7.42.1"
},
{
"status": "affected",
"version": "7.42.0"
},
{
"status": "affected",
"version": "7.41.0"
},
{
"status": "affected",
"version": "7.40.0"
},
{
"status": "affected",
"version": "7.39.0"
},
{
"status": "affected",
"version": "7.38.0"
},
{
"status": "affected",
"version": "7.37.1"
},
{
"status": "affected",
"version": "7.37.0"
},
{
"status": "affected",
"version": "7.36.0"
},
{
"status": "affected",
"version": "7.35.0"
},
{
"status": "affected",
"version": "7.34.0"
},
{
"status": "affected",
"version": "7.33.0"
},
{
"status": "affected",
"version": "7.32.0"
},
{
"status": "affected",
"version": "7.31.0"
},
{
"status": "affected",
"version": "7.30.0"
},
{
"status": "affected",
"version": "7.29.0"
},
{
"status": "affected",
"version": "7.28.1"
},
{
"status": "affected",
"version": "7.28.0"
},
{
"status": "affected",
"version": "7.27.0"
},
{
"status": "affected",
"version": "7.26.0"
},
{
"status": "affected",
"version": "7.25.0"
},
{
"status": "affected",
"version": "7.24.0"
},
{
"status": "affected",
"version": "7.23.1"
},
{
"status": "affected",
"version": "7.23.0"
},
{
"status": "affected",
"version": "7.22.0"
},
{
"status": "affected",
"version": "7.21.7"
},
{
"status": "affected",
"version": "7.21.6"
},
{
"status": "affected",
"version": "7.21.5"
},
{
"status": "affected",
"version": "7.21.4"
},
{
"status": "affected",
"version": "7.21.3"
},
{
"status": "affected",
"version": "7.21.2"
},
{
"status": "affected",
"version": "7.21.1"
},
{
"status": "affected",
"version": "7.21.0"
},
{
"status": "affected",
"version": "7.20.1"
},
{
"status": "affected",
"version": "7.20.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Arkadi Vainbrand"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability exists where a connection requiring TLS incorrectly reuses an\nexisting unencrypted connection from the same connection pool. If an initial\ntransfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request\nto that same host bypasses the TLS requirement and instead transmit data\nunencrypted."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-319",
"description": "Cleartext Transmission of Sensitive Information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-15T06:02:57.389Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"url": "https://curl.se/docs/CVE-2026-4873.json"
},
{
"url": "https://curl.se/docs/CVE-2026-4873.html"
},
{
"url": "https://hackerone.com/reports/3621851"
}
],
"title": "connection reuse ignores TLS requirement",
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_osv": {
"affected": [
{
"ranges": [
{
"events": [
{
"introduced": "7.20.0"
},
{
"fixed": "8.14.2"
},
{
"introduced": "8.15.0"
},
{
"fixed": "8.16.1"
},
{
"introduced": "8.17.0"
},
{
"fixed": "8.20.0"
}
],
"type": "SEMVER"
},
{
"events": [
{
"introduced": "ec3bb8f727405642a471b4b1b9eb0118fc003104"
},
{
"fixed": "507e7be573b0a76fca597b75ff7cb27a66e7d865"
}
],
"repo": "https://github.com/curl/curl.git",
"type": "GIT"
}
],
"versions": [
"8.19.0",
"8.18.0",
"8.17.0",
"8.16.0",
"8.15.0",
"8.14.1",
"8.14.0",
"8.13.0",
"8.12.1",
"8.12.0",
"8.11.1",
"8.11.0",
"8.10.1",
"8.10.0",
"8.9.1",
"8.9.0",
"8.8.0",
"8.7.1",
"8.7.0",
"8.6.0",
"8.5.0",
"8.4.0",
"8.3.0",
"8.2.1",
"8.2.0",
"8.1.2",
"8.1.1",
"8.1.0",
"8.0.1",
"8.0.0",
"7.88.1",
"7.88.0",
"7.87.0",
"7.86.0",
"7.85.0",
"7.84.0",
"7.83.1",
"7.83.0",
"7.82.0",
"7.81.0",
"7.80.0",
"7.79.1",
"7.79.0",
"7.78.0",
"7.77.0",
"7.76.1",
"7.76.0",
"7.75.0",
"7.74.0",
"7.73.0",
"7.72.0",
"7.71.1",
"7.71.0",
"7.70.0",
"7.69.1",
"7.69.0",
"7.68.0",
"7.67.0",
"7.66.0",
"7.65.3",
"7.65.2",
"7.65.1",
"7.65.0",
"7.64.1",
"7.64.0",
"7.63.0",
"7.62.0",
"7.61.1",
"7.61.0",
"7.60.0",
"7.59.0",
"7.58.0",
"7.57.0",
"7.56.1",
"7.56.0",
"7.55.1",
"7.55.0",
"7.54.1",
"7.54.0",
"7.53.1",
"7.53.0",
"7.52.1",
"7.52.0",
"7.51.0",
"7.50.3",
"7.50.2",
"7.50.1",
"7.50.0",
"7.49.1",
"7.49.0",
"7.48.0",
"7.47.1",
"7.47.0",
"7.46.0",
"7.45.0",
"7.44.0",
"7.43.0",
"7.42.1",
"7.42.0",
"7.41.0",
"7.40.0",
"7.39.0",
"7.38.0",
"7.37.1",
"7.37.0",
"7.36.0",
"7.35.0",
"7.34.0",
"7.33.0",
"7.32.0",
"7.31.0",
"7.30.0",
"7.29.0",
"7.28.1",
"7.28.0",
"7.27.0",
"7.26.0",
"7.25.0",
"7.24.0",
"7.23.1",
"7.23.0",
"7.22.0",
"7.21.7",
"7.21.6",
"7.21.5",
"7.21.4",
"7.21.3",
"7.21.2",
"7.21.1",
"7.21.0",
"7.20.1",
"7.20.0"
]
}
],
"aliases": [
"CVE-2026-4873"
],
"credits": [
{
"name": "Arkadi Vainbrand",
"type": "finder"
},
{
"name": "Daniel Stenberg",
"type": "remediation developer"
}
],
"database_specific": {
"CWE": {
"desc": "Cleartext Transmission of Sensitive Information",
"id": "CWE-319"
},
"URL": "https://curl.se/docs/CVE-2026-4873.json",
"affects": "both",
"issue": "https://hackerone.com/reports/3621851",
"last_affected": "8.19.0",
"package": "curl",
"severity": "Low",
"www": "https://curl.se/docs/CVE-2026-4873.html"
},
"details": "A vulnerability exists where a connection requiring TLS incorrectly reuses an\nexisting unencrypted connection from the same connection pool. If an initial\ntransfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request\nto that same host bypasses the TLS requirement and instead transmit data\nunencrypted.",
"id": "CURL-CVE-2026-4873",
"modified": "2026-09-07T10:34:51.00Z",
"published": "2026-04-29T08:00:00.00Z",
"schema_version": "1.5.0",
"summary": "connection reuse ignores TLS requirement"
}
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-4873",
"datePublished": "2026-05-13T08:27:04.538Z",
"dateReserved": "2026-03-26T05:38:02.098Z",
"dateUpdated": "2026-09-15T06:02:57.389Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…