CVE-2026-55956

CVE-2026-55956: Apache Tomcat: Security constraints for default servlet ignored method

Vendor Apache Software Foundation
Product Apache Tomcat
Weakness CWE-285
Published June 29, 2026
Last update June 30, 2026

CVSS base score

What the vulnerability does

01Description

Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint. 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.

Key dates

02Disclosure timeline

June 29, 2026 CVE published
June 30, 2026 Record updated