CVE-2026-65182: Apache Tomcat

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

Improper Access Control, Incorrect Authorization vulnerability in Apache Tomcat leads to security constraint bypass if a constraint for a longer path is specified before a more restrictive constraint for a shorter sub-path. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.25, 10.1.58, 9.0.121, which fixes the issue.

Affected products

• Apache Tomcat: from 7.0.0, up to and including 7.0.109; from 8.5.0, before 9.0.121 (fixed in 9.0.121); from 10.1.0, before 10.1.58 (fixed in 10.1.58); from 11.0.0, before 11.0.25 (fixed in 11.0.25)

Published 2026-08-25. Last modified 2026-08-27.