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CERTFR-2026-AVI-1218
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans Apache Tomcat. Certaines d'entre elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à l'intégrité des données et un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Tomcat versions 11.0.x ant\u00e9rieures \u00e0 11.0.26",
"product": {
"name": "Tomcat",
"vendor": {
"name": "Apache",
"scada": false
}
}
},
{
"description": "Tomcat versions 10.1.x ant\u00e9rieures \u00e0 10.1.60",
"product": {
"name": "Tomcat",
"vendor": {
"name": "Apache",
"scada": false
}
}
},
{
"description": "Tomcat versions 9.0.x ant\u00e9rieures \u00e0 9.0.122",
"product": {
"name": "Tomcat",
"vendor": {
"name": "Apache",
"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-2026-77791",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-77791"
},
{
"name": "CVE-2026-76183",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-76183"
},
{
"name": "CVE-2026-77756",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-77756"
},
{
"name": "CVE-2026-34500",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-34500"
},
{
"name": "CVE-2026-77762",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-77762"
},
{
"name": "CVE-2026-78383",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-78383"
},
{
"name": "CVE-2026-86350",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86350"
},
{
"name": "CVE-2026-78437",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-78437"
},
{
"name": "CVE-2026-86248",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86248"
},
{
"name": "CVE-2026-75973",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-75973"
},
{
"name": "CVE-2026-79677",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-79677"
},
{
"name": "CVE-2026-73581",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-73581"
},
{
"name": "CVE-2026-41293",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-41293"
},
{
"name": "CVE-2026-87022",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-87022"
}
],
"initial_release_date": "2026-09-23T00:00:00",
"last_revision_date": "2026-09-23T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1218",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-09-23T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Apache Tomcat. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance, une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Apache Tomcat",
"vendor_advisories": [
{
"published_at": "2026-09-15",
"title": "Bulletin de s\u00e9curit\u00e9 Apache Tomcat Apache_Tomcat_11.0.26",
"url": "https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.26"
},
{
"published_at": "2026-09-15",
"title": "Bulletin de s\u00e9curit\u00e9 Apache Tomcat Apache_Tomcat_9.0.122",
"url": "https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.122"
},
{
"published_at": "2026-09-15",
"title": "Bulletin de s\u00e9curit\u00e9 Apache Tomcat Apache_Tomcat_10.1.60",
"url": "https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.60"
}
]
}
CVE-2026-73581 (GCVE-0-2026-73581)
Vulnerability from cvelistv5
Published
2026-09-23 11:08
Modified
2026-09-30 14:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-299 - Improper Check for Certificate Revocation
Summary
Improper Check for Certificate Revocation vulnerability in Apache Tomcat. Both the OpenSSL and OpenSSL-FFM TLS implementations ignore CRLs when certificate uses a keystore.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0-M1 through 9.0.121.
The following versions were EOL at the time the CVE was created but are
known to be affected: from 8.5.0 through 8.5.100. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.26, 10.1.59, 9.0.122, which fixes the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Version: 11.0.0-M1 ≤ 11.0.25 Version: 10.1.0-M1 ≤ 10.1.59 Version: 9.0.0.M1 ≤ 9.0.121 Version: 8.5.0 ≤ 8.5.100 |
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CVE-2026-77756 (GCVE-0-2026-77756)
Vulnerability from cvelistv5
Published
2026-09-23 11:18
Modified
2026-09-23 18:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Summary
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomcat caused by processing the transfer-encoding header for an HTTP/1.0 request may allow an attacker to cause one request from another user to fail when Tomcat is located behind a reverse proxy.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.47 through 9.0.121.
The following versions were EOL at the time the CVE was created but are
known to be affected: from 8.5.67 through 8.5.100. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Version: 11.0.0-M1 ≤ 11.0.25 Version: 10.1.0-M1 ≤ 10.1.59 Version: 9.0.47 ≤ 9.0.121 Version: 8.5.67 ≤ 8.5.100 |
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CVE-2026-86248 (GCVE-0-2026-86248)
Vulnerability from cvelistv5
Published
2026-09-23 11:29
Modified
2026-09-23 16:14
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled
Summary
CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled vulnerability in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.25, from 10.1.22 through 10.1.59, from 9.0.92 through 9.0.121.
Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Version: 11.0.0-M14 ≤ 11.0.25 Version: 10.1.22 ≤ 10.1.59 Version: 9.0.92 ≤ 9.0.121 |
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CVE-2026-77791 (GCVE-0-2026-77791)
Vulnerability from cvelistv5
Published
2026-09-23 11:20
Modified
2026-09-23 18:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack.
This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121.
The following versions were EOL at the time the CVE was created but are
known to be affected: from 8.5.88 through 8.5.100. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Version: 11.0.0-M5 ≤ 11.0.25 Version: 10.1.8 ≤ 10.1.59 Version: 9.0.74 ≤ 9.0.121 Version: 8.5.88 ≤ 8.5.100 |
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CVE-2026-76183 (GCVE-0-2026-76183)
Vulnerability from cvelistv5
Published
2026-09-23 11:16
Modified
2026-09-30 14:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-289 - Authentication Bypass by Alternate Name
Summary
Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.
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known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Version: 11.0.0-M1 ≤ 11.0.25 Version: 10.1.0-M1 ≤ 10.1.59 Version: 9.0.0.M1 ≤ 9.0.121 Version: 8.5.0 ≤ 8.5.100 Version: 7.0.43 ≤ 7.0.109 |
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CVE-2026-79677 (GCVE-0-2026-79677)
Vulnerability from cvelistv5
Published
2026-09-23 11:28
Modified
2026-09-23 18:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Missing release of resource after effective lifetime, Comparison using wrong factors vulnerability in Apache Tomcat allows a denial of service as a result of lost time outs for asynchronous WebSocket writes.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.
The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
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CVE-2026-77762 (GCVE-0-2026-77762)
Vulnerability from cvelistv5
Published
2026-09-23 11:19
Modified
2026-09-30 14:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Summary
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat allows an attacker to inject trailer fields into another HTTP/2 request.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.39 through 9.0.121.
The following versions were EOL at the time the CVE was created but are
known to be affected: from 8.5.59 through 8.5.100. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.26, 10.1.60, 9.0.122, which fix the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Version: 11.0.0-M1 ≤ 11.0.25 Version: 10.1.0-M1 ≤ 10.1.59 Version: 9.0.39 ≤ 9.0.121 Version: 8.5.59 ≤ 8.5.100 |
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CVE-2026-86350 (GCVE-0-2026-86350)
Vulnerability from cvelistv5
Published
2026-09-23 11:31
Modified
2026-09-23 16:17
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-444 - Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')
Summary
Inconsistent interpretation of HTTP/2 requests ('HTTP Request/Response smuggling') vulnerability in Apache Tomcat caused by a regression in fix for CVE-2026-41293 can trigger request header mix-up.
This issue affects Apache Tomcat: from 11.0.22 through 11.0.25, from 10.1.55 through 10.1.59, from 9.0.118 through 9.0.121.
Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
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CVE-2026-41293 (GCVE-0-2026-41293)
Vulnerability from cvelistv5
Published
2026-05-12 15:19
Modified
2026-09-17 18:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-20 - Improper Input Validation
Summary
Improper Input Validation vulnerability in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 10.0.0-M1 through 10.0.27.
Older, end of support versions may also be affected.
Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
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CVE-2026-87022 (GCVE-0-2026-87022)
Vulnerability from cvelistv5
Published
2026-09-23 11:32
Modified
2026-09-23 18:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-130 - Improper handling of length parameter inconsistency
Summary
Improper handling of length parameter inconsistency vulnerability in Apache Tomcat allows WebSocket message smuggling when per-message-deflate is used.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.
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Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.1.22, which fix the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
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CVE-2026-75973 (GCVE-0-2026-75973)
Vulnerability from cvelistv5
Published
2026-09-23 11:14
Modified
2026-09-23 18:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-287 - Improper Authentication
Summary
Improper Authentication vulnerability in Apache Tomcat. When Jakarta Authentication was configured with SimpleAuthConfigProvider as the default provider and multiple web application used that provider, the realm for the first web application to authenticate a request would be used for all web applications.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M4 through 9.0.121.
The following versions were EOL at the time the CVE was created but are
known to be affected: from 8.5.0 through 8.5.100. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.26, 10.1.60, 9.0.122, which fixes the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Version: 11.0.0-M1 ≤ 11.0.25 Version: 10.1.0-M1 ≤ 10.1.59 Version: 9.0.0.M4 ≤ 9.0.121 Version: 8.5.0 ≤ 8.5.100 |
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CVE-2026-34500 (GCVE-0-2026-34500)
Vulnerability from cvelistv5
Published
2026-04-09 19:36
Modified
2026-04-10 14:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled
Summary
CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled and FFM is used in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.20, from 10.1.22 through 10.1.53, from 9.0.92 through 9.0.116.
Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fixes the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Version: 11.0.0-M14 ≤ 11.0.20 Version: 10.1.22 ≤ 10.1.53 Version: 9.0.92 ≤ 9.0.116 |
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CVE-2026-78383 (GCVE-0-2026-78383)
Vulnerability from cvelistv5
Published
2026-09-23 11:23
Modified
2026-09-23 18:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of resources without limits or throttling
Summary
Allocation of resources without limits or throttling vulnerability in Apache Tomcat allows an unauthenticated AJP request to pin an AJP processing thread leading to denial of service.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.
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References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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| Apache Software Foundation | Apache Tomcat |
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CVE-2026-78437 (GCVE-0-2026-78437)
Vulnerability from cvelistv5
Published
2026-09-23 11:26
Modified
2026-09-23 18:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-459 - Incomplete cleanup
Summary
Incomplete cleanup vulnerability in Apache Tomcat allows a malformed request to potentially (depends on timing) cause one request from another user to fail.
This issue affects Apache Tomcat: from 11.0.19 through 11.0.25, from 10.1.53 through 10.1.59, from 9.0.116 through 9.0.121.
Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Version: 11.0.19 ≤ 11.0.25 Version: 10.1.53 ≤ 10.1.59 Version: 9.0.116 ≤ 9.0.121 |
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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.
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