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.
Fix
Public exploits 4
- Chenjp/CVE-2026-29145-Tester PoC on GitHub
- gkdgkd123/CVE-2026-29145-Everything PoC on GitHub
- gregk4sec/cve-2026-29145 PoC on GitHub
- sancliffe/CVE-2026-29145-Tester PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 1
- https://lists.apache.org/thread/yz5fxmhd2j43wgqykssdo7kltws57jfz Mailing List, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.1 · apacheNVD modified 2026-10-26 21:10
Affected (CPE criteria) 17
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:-:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone10:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone11:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone12:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone13:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone14:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone15:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone16:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone17:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone18:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone19:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone20:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone7:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone8:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone9:*:*:*:*:*:*cpe:2.3:a:apache:tomcat_native:*:*:*:*:*:*:*:*
References 2
- https://lists.apache.org/thread/yz5fxmhd2j43wgqykssdo7kltws57jfz Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/04/09/23 Mailing List, Third Party Advisory