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RLSA-2026:68677 (CVE-2024-52316)
Vulnerability from osv_rocky – Published: 2026-09-19 06:01 – Updated: 2026-09-25 18:13 – Source website
VLAI
Summary
Important: tomcat security update
Details
Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies.
Security Fix(es):
-
tomcat-coyote: Apache Tomcat: Authentication bypass via digest authentication (CVE-2026-43512)
-
tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated (CVE-2026-41293)
-
tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during WebSocket authentication. (CVE-2026-42498)
-
tomcat-coyote: tomcat: Improper Authorization allows security bypass (CVE-2026-43515)
-
tomcat-catalina: Apache Tomcat: Improper Handling of Case Sensitivity in LockOutRealm (CVE-2026-43513)
-
tomcat: Apache Tomcat: Authentication bypass via missing critical step in JNDIRealm GSSAPI configuration (CVE-2026-55957)
-
tomcat: Apache Tomcat: Security constraint bypass via improper URL encoding in rewrite valve (CVE-2026-59083)
-
tomcat: Apache Tomcat: Insufficient documentation for EncryptInterceptor may lead to insecure configurations (CVE-2026-59084)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Severity
7.5 (High)
References
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CVE-2026-29145 (GCVE-0-2026-29145)
Vulnerability from cvelistv5 – Published: 2026-04-09 19:20 – Updated: 2026-04-10 18:11
VLAI
EPSS
VEX
Title
Apache Tomcat, Apache Tomcat Native: OCSP checks sometimes soft-fail even 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, Apache Tomcat Native.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M7 through 10.1.52, from 9.0.83 through 9.0.115; Apache Tomcat Native: from 1.1.23 through 1.1.34, from 1.2.0 through 1.2.39, from 1.3.0 through 1.3.6, from 2.0.0 through 2.0.13.
Users are recommended to upgrade to version Tomcat Native 1.3.7 or 2.0.14 and Tomcat 11.0.20, 10.1.53 and 9.0.116, which fix the issue.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 18:10 UTC
CWE
- CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled
- CWE-287 - Improper Authentication
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/yz5fxmhd2j43wgqyk… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Affected:
11.0.0-M1 , ≤ 11.0.18
(semver)
Affected: 10.1.0-M7 , ≤ 10.1.52 (semver) Affected: 9.0.83 , ≤ 9.0.115 (semver) Unaffected: 0 , ≤ 8.5.100 (semver) |
|
| Apache Software Foundation | Apache Tomcat Native |
Affected:
1.1.23 , ≤ 1.1.34
(semver)
Affected: 1.2.0 , ≤ 1.2.39 (semver) Affected: 1.3.0 , ≤ 1.3.6 (semver) Affected: 2.0.0 , ≤ 2.0.13 (semver) |
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CVE-2026-34483 (GCVE-0-2026-34483)
Vulnerability from cvelistv5 – Published: 2026-04-09 19:30 – Updated: 2026-04-10 20:17
VLAI
EPSS
VEX
Title
Apache Tomcat: Incomplete escaping of JSON access logs
Summary
Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.40 through 9.0.116.
Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117 , which fix the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 20:16 UTC
CWE
- CWE-116 - Improper Encoding or Escaping of Output
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/j1w7304yonlr8vo1t… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Affected:
11.0.0-M1 , ≤ 11.0.20
(semver)
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CVE-2026-34487 (GCVE-0-2026-34487)
Vulnerability from cvelistv5 – Published: 2026-04-09 19:36 – Updated: 2026-04-10 17:49
VLAI
EPSS
VEX
Title
Apache Tomcat: Cloud membership for clustering component exposed the Kubernetes bearer token
Summary
Insertion of Sensitive Information into Log File vulnerability in the cloud membership for clustering component of Apache Tomcat exposed the Kubernetes bearer token.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.13 through 9.0.116.
Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 17:47 UTC
CWE
- CWE-532 - Insertion of Sensitive Information into Log File
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/4xpkwolpkrj8v5xzp… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Affected:
11.0.0-M1 , ≤ 11.0.20
(semver)
Affected: 10.1.0-M1 , ≤ 10.1.53 (semver) Affected: 9.0.13 , ≤ 9.0.116 (semver) |
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CVE-2026-41284 (GCVE-0-2026-41284)
Vulnerability from cvelistv5 – Published: 2026-05-12 15:14 – Updated: 2026-05-13 15:57
VLAI
EPSS
VEX
Title
Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling
Summary
Allocation of Resources Without Limits or Throttling 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.
Older, unsupported versions may also be affected.
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Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 15:57 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/2nvqjr7ovjmvx2vbh… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
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Affected:
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(semver)
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CVE-2026-41293 (GCVE-0-2026-41293)
Vulnerability from cvelistv5 – Published: 2026-05-12 15:19 – Updated: 2026-09-17 18:37
VLAI
EPSS
VEX
Title
Apache Tomcat: HTTP/2 request headers not validated
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.
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Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-14 16:40 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/qwg0q16z7xkb2qrr8… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
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| Apache Software Foundation | Apache Tomcat |
Affected:
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CVE-2026-42498 (GCVE-0-2026-42498)
Vulnerability from cvelistv5 – Published: 2026-05-12 15:17 – Updated: 2026-05-13 15:59
VLAI
EPSS
VEX
Title
Apache Tomcat: WebSocket authentication header exposure
Summary
Exposure of HTTP Authentication Header to unexpected hosts during WebSocket authentication 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 9.0.2 through 9.0.117, from 8.5.24 through 8.5.100, from 7.0.83 through 7.0.109.
Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118, which fix the issue.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 15:58 UTC
CWE
- CWE-200 - Exposure of HTTP Authentication Header to unexpected hosts
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/n61zwf75jrv09rz90… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
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| Apache Software Foundation | Apache Tomcat |
Affected:
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CVE-2026-43512 (GCVE-0-2026-43512)
Vulnerability from cvelistv5 – Published: 2026-05-12 15:24 – Updated: 2026-05-14 19:53
VLAI
EPSS
VEX
Title
Apache Tomcat: Digest authenticator will authenticate any unknown user
Summary
DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication 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 8.5.0 through 8.5.100, from before 7.0.0.
Older unsupported versions any also be affect
Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-14 16:38 UTC
CWE
- CWE-592 - DEPRECATED: Authentication Bypass Issues
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Affected:
11.0.0-M1 , ≤ 11.0.21
(semver)
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CVE-2026-43513 (GCVE-0-2026-43513)
Vulnerability from cvelistv5 – Published: 2026-05-12 15:26 – Updated: 2026-05-14 19:53
VLAI
EPSS
VEX
Title
Apache Tomcat: LockOutRealm treats user names as case-sensitive
Summary
Improper Handling of Case Sensitivity vulnerability in LockOutRealm 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 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.
Older unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-14 16:34 UTC
CWE
- CWE-178 - Improper Handling of Case Sensitivity
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Affected:
11.0.0-M1 , ≤ 11.0.21
(semver)
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CVE-2026-43514 (GCVE-0-2026-43514)
Vulnerability from cvelistv5 – Published: 2026-05-12 15:32 – Updated: 2026-05-13 17:22
VLAI
EPSS
VEX
Title
Apache Tomcat: AJP secret compared in non-constant time
Summary
Observable Timing Discrepancy vulnerability when comparing AJP secret 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 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.
Older unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 17:22 UTC
CWE
- CWE-208 - Observable Timing Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/2k654v5cq123npfsd… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
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| Apache Software Foundation | Apache Tomcat |
Affected:
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CVE-2026-43515 (GCVE-0-2026-43515)
Vulnerability from cvelistv5 – Published: 2026-05-12 15:33 – Updated: 2026-06-04 09:57
VLAI
EPSS
VEX
Title
Apache Tomcat: Security constraints not correctly applied
Summary
Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension 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 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.
Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-14 16:33 UTC
CWE
- CWE-285 - Improper Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/746nxfxod0wsocxtm… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Affected:
11.0.0-M1 , ≤ 11.0.21
(semver)
Affected: 10.1.0-M1 , ≤ 10.1.54 (semver) Affected: 9.0.0.M1 , ≤ 9.0.117 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver) Affected: 7.0.0 , ≤ 7.0.109 (semver) Unknown: 0 , < 7.0.0 (semver) |
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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