CVE-2026-65183: Apache Tomcat

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat when creating unix domain sockets allows an unauthorised local user to access the unix domain socket. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.42 through 9.0.120. 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 9.0.42, 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.