CVE-2026-50229

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

Apache Tomcat

≤ 7.0.109, 8.5.100, 9.0.119, 10.1.56, 11.0.23

Fix

Available

CVSS 3.1

6.1 MEDIUM

EPSS

4.2% (90th percentile)

Weakness

CWE-80

NVD status

Analyzed

Published

2026-06-29