Critical9.1Apache Software Foundation

Critical [CVE-2026-29145] Apache Tomcat: CLIENT_CERT authentication does not fail as expected for some scenarios

This critical-severity Apache Software Foundation advisory covers CVE-2026-29145 affecting Apache Tomcat, Apache Tomcat Native, Tomcat.

CVE-2026-29145 Published Apr 9, 2026Updated by vendor Jun 17, 2026

CVE-2026-29145

Affected products & platforms

Apache Software FoundationTomcat

Open vendor advisory

Android app · Google Play

Monitor future Apache Software Foundation CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery

Get CVE alerts See app features

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.

Affected versions

11.0.0-M1 through 11.0.18
10.1.0-M7 through 10.1.52
9.0.83 through 9.0.115
1.1.23 through 1.1.34
1.2.0 through 1.2.39
1.3.0 through 1.3.6
2.0.0 through 2.0.13.
through 2.0.13

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

1.3.7
2.0.14
11.0.20
10.1.53
9.0.116

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation

Upgrade to a fixed release: 1.3.7, 2.0.14, 11.0.20, 10.1.53, 9.0.116. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

NVD discovery recordNVD
Independent discovery and scoring cross-reference. Vendor remediation guidance takes precedence. Discovered from the machine-readable feed https://services.nvd.nist.gov/rest/json/cves/2.0; this link opens the NVD record for CVE-2026-29145 instead of the raw feed document.
NIST National Vulnerability Database

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-29145NVD CVE.org MITRE

Official resources

Apache Tomcat security bulletins (per major version) (target: 1.3.7 / 2.0.14 / 11.0.20)
Official documentation
This advisory names 1.3.7 / 2.0.14 / 11.0.20 as the first fixed releases — official upgrade documentation for Apache Tomcat security bulletins (per major version).
ASF Security — reporting & CVE process
Official documentation
The Apache Software Foundation's official security page: how ASF CVEs are published and where each project's advisories live.
Apache project downloads (fixed releases)
Official documentation
Official ASF download tree — fetch the fixed release named in this advisory from the project's directory.

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.