CVE-2026-29145: Apache Tomcat

Critical severity, CVSS 9.1. EPSS: 0.7% chance of exploitation in the next 30 days.

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 products

• Apache Tomcat: from 9.0.83, before 9.0.116 (fixed in 9.0.116); from 10.1.1, before 10.1.53 (fixed in 10.1.53); from 11.0.0, before 11.0.20 (fixed in 11.0.20); version 10.1.0 only
• Apache Tomcat Native: from 1.1.23, before 1.3.7 (fixed in 1.3.7); from 2.0.0, before 2.0.14 (fixed in 2.0.14)

Published 2026-04-09. Last modified 2026-06-17.