CVE-2026-59084: Apache Tomcat

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Insufficient Technical Documentation vulnerability in Apache Tomcat since the requirements to securely configure the EncryptInterceptor were not clearly documented. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.13 through 9.0.119, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120 which fix the issue.

Affected products

• Apache Tomcat: from 7.0.100, up to and including 7.0.109; from 8.5.38, up to and including 8.5.100; from 9.0.13, up to and including 9.0.119; from 10.1.0, up to and including 10.1.56; from 11.0.0, up to and including 11.0.23

Published 2026-07-14. Last modified 2026-07-14.