CVE-2026-29145

Critical

Description

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.

SeverityCritical
CVSS9.1
Exploit probability—
ProductApache Tomcat
PublishedApr 9, 2026
First seenApr 9, 2026

How to fix

Update
  • apache tomcat9.0.116, 10.1.53, 11.0.20 or later
  • apache tomcat_native1.3.7, 2.0.14 or later
  • org.apache.tomcat:tomcat-coyote-ffm9.0.116, 10.1.53, 11.0.20 or later
  • org.apache.tomcat:tomcat9.0.116, 10.1.53, 11.0.20 or later

Affected products

ProductAffected versionsFixed in
apache tomcat9.0.83 ≤ v < 9.0.116, 10.1.1 ≤ v < 10.1.53, 11.0.0 ≤ v < 11.0.20, 10.1.09.0.116, 10.1.53, 11.0.20
apache tomcat_native1.1.23 ≤ v < 1.3.7, 2.0.0 ≤ v < 2.0.141.3.7, 2.0.14
org.apache.tomcat:tomcat-coyote-ffmMaven9.0.83 ≤ v < 9.0.116, 10.1.0-M7 ≤ v < 10.1.53, 11.0.0-M1 ≤ v < 11.0.209.0.116, 10.1.53, 11.0.20
org.apache.tomcat:tomcatMaven9.0.83 ≤ v < 9.0.116, 10.1.0-M7 ≤ v < 10.1.53, 11.0.0-M1 ≤ v < 11.0.209.0.116, 10.1.53, 11.0.20

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CVE-2026-29145 · Apache Tomcat · Dark Radar