CVE-2026-29129 Apache Tomcat - Configured TLS cipher preference order
not preserved
Severity: Low
Vendor: The Apache Software Foundation
Versions Affected:
Apache Tomcat 11.0.16 to 11.0.18
Apache Tomcat 10.1.51 to 10.1.52
Apache Tomcat 9.0.114 to 9.0.115
Description:
The additional of the ability to configure TLS 1.3 cipher suites did not
preserve the order of the configured cipher suites and ciphers.
Mitigation:
Users of the affected versions should apply one of the following
mitigations:
- Upgrade to Apache Tomcat 11.0.20 or later
- Upgrade to Apache Tomcat 10.1.53 or later
- Upgrade to Apache Tomcat 9.0.116 or later
Credit:
This issue was identified by the Tomcat security team
History:
2026-04-09 Original advisory
References:
[1] https://tomcat.apache.org/security-11.html
[2] https://tomcat.apache.org/security-10.html
[3] https://tomcat.apache.org/security-9.html
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