CVE-2026-50229: Apache Tomcat

Medium severity, CVSS 6.1. EPSS: 4.1% chance of exploitation in the next 30 days.

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in the number guess example for Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.

Affected products

• Apache Tomcat: up to and including 7.0.109; from 8.5.0, up to and including 8.5.100; from 9.0.0, before 9.0.119 (fixed in 9.0.119); from 10.1.0, before 10.1.56 (fixed in 10.1.56); from 11.0.0, before 11.0.23 (fixed in 11.0.23)

Published 2026-06-29. Last modified 2026-07-02.