CVE-2026-73180

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.24 Apache Tomcat versions 10.1.0-M1 through 10.1.57 Apache Tomcat versions 9.0.0.M1 through 9.0.120 Apache Tomcat versions 8.5.0 through 8.5.100 Apache Tomcat versions 7.0.43 through 7.0.109

Description Insufficient session expiration occurs when the session ID for an authenticated HTTP session is changed after a WebSocket connection has been established. In such cases, the WebSocket session remains open instead of closing as required by the Jakarta WebSocket specification when the HTTP session ends.

Recommendations Upgrade to version 11.0.25 Upgrade to version 10.1.58 Upgrade to version 9.0.121