Authentication Flaw in Apache Tomcat and Tomcat Native Software
CVE-2026-29145

Currently unrated

Key Information:

Vendor

Apache
Status
Apache Tomcat
Apache Tomcat Native
Vendor
CVE Published:
9 April 2026

What is CVE-2026-29145?

An authentication flaw exists in Apache Tomcat and Apache Tomcat Native, where the CLIENT_CERT authentication process does not fail as expected under certain configurations when soft fail is disabled. This vulnerability potentially allows unauthorized access in scenarios where proper validation is critical. Users are urged to upgrade to the latest secured versions to mitigate this risk and ensure the integrity of their authentication mechanisms.

Affected Version(s)

Apache Tomcat 11.0.0-M1 <= 11.0.18

Apache Tomcat 10.1.0-M7 <= 10.1.52

Apache Tomcat 9.0.83 <= 9.0.115

References

https://lists.apache.org/thread/yz5fxmhd2j43wgqykssdo7klt...
vendor-advisory

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

gregk4sec (https://github.com/gregk4sec)
.