What’s Vulnerable › Vulnerabilities

CVE-2026-29129: Apache Tomcat: TLS cipher order is not preserved

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-09 · updated 2026-10-26
• Weakness: CWE-327

Description

Configured cipher preference order not preserved vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.16 through 11.0.18, from 10.1.51 through 10.1.52, from 9.0.114 through 9.0.115. Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.

Affected products

• Apache Tomcat: from 9.0.114 before 9.0.116; from 10.1.51 before 10.1.53; from 11.0.16 before 11.0.20 — fixed in 9.0.116, 10.1.53, 11.0.20

How to fix

Upgrade to a fixed version: Apache Tomcat 9.0.116, 10.1.53, 11.0.20. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread/r4h1t6f8xhxsxfm6c2z5cprolsosho3f
• http://www.openwall.com/lists/oss-security/2026/04/09/22

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