CVE-2026-54083 (GCVE-0-2026-54083)
Vulnerability from cvelistv5
Published
2026-08-27 22:45
Modified
2026-08-28 17:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary
Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. The ip-customblock active response script contains a path traversal vulnerability that lets an attacker create or delete arbitrary files on the filesystem as root. The script builds a file path by concatenating the srcip field taken from alert JSON directly onto the fixed /ipblock/ base directory, without validating that the value is a well-formed IP address. Because the extraction routine returns the raw string unchecked, an attacker who can trigger alert-matching log events with a crafted srcip containing ../ sequences can escape the base directory. The block action opens the resulting path in append mode, creating an empty file at an arbitrary location, while the unblock action passes it to remove(), deleting an arbitrary file; since the active response daemon runs as root, this includes sensitive files such as system credentials and Wazuh configuration. Unlike the sibling scripts host-deny.c, default-firewall-drop.c, and firewalld-drop.c, which reject non-IP input via get_ip_version(), ip-customblock.c omits this validation. This issue is fixed in version 4.14.7.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-54083",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-28T17:38:53.135012Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-28T17:40:47.904Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "wazuh",
"vendor": "wazuh",
"versions": [
{
"status": "affected",
"version": "\u003e= 4.2.0, \u003c 4.14.7"
},
{
"status": "affected",
"version": "\u003e= 5.0.0-alpha0, \u003c 5.0.0-beta3"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. The \u00a0ip-customblock\u00a0 active response script contains a path traversal vulnerability that lets an attacker create or delete arbitrary files on the filesystem as root. The script builds a file path by concatenating the \u00a0srcip\u00a0 field taken from alert JSON directly onto the fixed \u00a0/ipblock/\u00a0 base directory, without validating that the value is a well-formed IP address. Because the extraction routine returns the raw string unchecked, an attacker who can trigger alert-matching log events with a crafted \u00a0srcip\u00a0 containing \u00a0../\u00a0 sequences can escape the base directory. The block action opens the resulting path in append mode, creating an empty file at an arbitrary location, while the unblock action passes it to remove(), deleting an arbitrary file; since the active response daemon runs as root, this includes sensitive files such as system credentials and Wazuh configuration. Unlike the sibling scripts host-deny.c, default-firewall-drop.c, and firewalld-drop.c, which reject non-IP input via get_ip_version(), ip-customblock.c omits this validation. This issue is fixed in version 4.14.7."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"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:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-22",
"description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-27T22:45:37.326Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/wazuh/wazuh/security/advisories/GHSA-m4mf-qmhf-8vj6",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-m4mf-qmhf-8vj6"
},
{
"name": "https://github.com/wazuh/wazuh/commit/e6ef99025b2ca4ba8003efb591c51545006bc2d4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/wazuh/wazuh/commit/e6ef99025b2ca4ba8003efb591c51545006bc2d4"
}
],
"source": {
"advisory": "GHSA-m4mf-qmhf-8vj6",
"discovery": "UNKNOWN"
},
"title": "Wazuh: Path traversal in ip-customblock active response allows arbitrary file creation and deletion"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-54083",
"datePublished": "2026-08-27T22:45:37.326Z",
"dateReserved": "2026-06-11T18:44:47.761Z",
"dateUpdated": "2026-08-28T17:40:47.904Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-54083\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-28T17:38:53.135012Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-28T17:40:32.582Z\"}}], \"cna\": {\"title\": \"Wazuh: Path traversal in ip-customblock active response allows arbitrary file creation and deletion\", \"source\": {\"advisory\": \"GHSA-m4mf-qmhf-8vj6\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"wazuh\", \"product\": \"wazuh\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 4.2.0, \u003c 4.14.7\"}, {\"status\": \"affected\", \"version\": \"\u003e= 5.0.0-alpha0, \u003c 5.0.0-beta3\"}]}], \"references\": [{\"url\": \"https://github.com/wazuh/wazuh/security/advisories/GHSA-m4mf-qmhf-8vj6\", \"name\": \"https://github.com/wazuh/wazuh/security/advisories/GHSA-m4mf-qmhf-8vj6\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/wazuh/wazuh/commit/e6ef99025b2ca4ba8003efb591c51545006bc2d4\", \"name\": \"https://github.com/wazuh/wazuh/commit/e6ef99025b2ca4ba8003efb591c51545006bc2d4\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Wazuh is an open-source security platform providing unified XDR and SIEM protection for endpoints and cloud workloads. The \\u00a0ip-customblock\\u00a0 active response script contains a path traversal vulnerability that lets an attacker create or delete arbitrary files on the filesystem as root. The script builds a file path by concatenating the \\u00a0srcip\\u00a0 field taken from alert JSON directly onto the fixed \\u00a0/ipblock/\\u00a0 base directory, without validating that the value is a well-formed IP address. Because the extraction routine returns the raw string unchecked, an attacker who can trigger alert-matching log events with a crafted \\u00a0srcip\\u00a0 containing \\u00a0../\\u00a0 sequences can escape the base directory. The block action opens the resulting path in append mode, creating an empty file at an arbitrary location, while the unblock action passes it to remove(), deleting an arbitrary file; since the active response daemon runs as root, this includes sensitive files such as system credentials and Wazuh configuration. Unlike the sibling scripts host-deny.c, default-firewall-drop.c, and firewalld-drop.c, which reject non-IP input via get_ip_version(), ip-customblock.c omits this validation. This issue is fixed in version 4.14.7.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-22\", \"description\": \"CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-08-27T22:45:37.326Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-54083\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-28T17:40:47.904Z\", \"dateReserved\": \"2026-06-11T18:44:47.761Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-08-27T22:45:37.326Z\", \"assignerShortName\": \"GitHub_M\"}",
"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…