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CVE-2026-29145

CRITICAL

Apache Tomcat: CLIENT_CERT authentication does not fail as expected

Published April 9, 2026Updated May 20, 2026Source: osv

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.

Remediation

Upgrade to the fixed version using your package manager.

Maven
Update org.apache.tomcat:tomcat-coyote-ffm to 10.1.53 or later
<!-- Update pom.xml dependency version to 10.1.53 for org.apache.tomcat:tomcat-coyote-ffm -->
Maven
Update org.apache.tomcat:tomcat to 9.0.116 or later
<!-- Update pom.xml dependency version to 9.0.116 for org.apache.tomcat:tomcat -->
Maven
Update org.apache.tomcat:tomcat to 11.0.20 or later
<!-- Update pom.xml dependency version to 11.0.20 for org.apache.tomcat:tomcat -->
Maven
Update org.apache.tomcat:tomcat-coyote-ffm to 11.0.20 or later
<!-- Update pom.xml dependency version to 11.0.20 for org.apache.tomcat:tomcat-coyote-ffm -->
Maven
Update org.apache.tomcat:tomcat to 10.1.53 or later
<!-- Update pom.xml dependency version to 10.1.53 for org.apache.tomcat:tomcat -->
Maven
Update org.apache.tomcat:tomcat-coyote-ffm to 9.0.116 or later
<!-- Update pom.xml dependency version to 9.0.116 for org.apache.tomcat:tomcat-coyote-ffm -->

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (6)

PackageEcosystemAffectedFixed In
org.apache.tomcat:tomcat-coyote-ffm
maven
10.1.26, 10.1.28, 10.1.29, 10.1.30 (+18 more)10.1.53
org.apache.tomcat:tomcat
maven
9.0.100, 9.0.102, 9.0.104, 9.0.105 (+25 more)9.0.116
org.apache.tomcat:tomcat
maven
11.0.0, 11.0.0-M1, 11.0.0-M10, 11.0.0-M11 (+36 more)11.0.20
org.apache.tomcat:tomcat-coyote-ffm
maven
11.0.0, 11.0.0-M22, 11.0.0-M24, 11.0.0-M25 (+17 more)11.0.20
org.apache.tomcat:tomcat
maven
10.1.0, 10.1.0-M10, 10.1.0-M11, 10.1.0-M12 (+50 more)10.1.53
org.apache.tomcat:tomcat-coyote-ffm
maven
9.0.100, 9.0.102, 9.0.104, 9.0.105 (+16 more)9.0.116

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-287
    Improper AuthenticationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.1 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

Frequently Asked Questions

What is CVE-2026-29145?
Apache Tomcat: CLIENT_CERT authentication does not fail as expected This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.1/10).
How do I check if my project is affected by CVE-2026-29145?
CVE-2026-29145 affects org.apache.tomcat:tomcat-coyote-ffm and org.apache.tomcat:tomcat. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-29145 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.1

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-95jq-rwvf-vjx4
BIT-tomcat-2026-29145

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