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

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Tomcat	affected 11.0.0-M1 through 11.0.22; affected 10.1.0-M1 through 10.1.55; affected 9.0.0.M1 through 9.0.118; affected 8.5.0 through 8.5.100; affected 7.0.0 through 7.0.109; unknown 0 before 7.0.0

CWE

CWE-285

References

https://lists.apache.org/thread/dcjdcnnnww9hhdm016hr0l7hpw1bzjfp

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/06/29/25

CISA-ADP

No English description supplied.

No references supplied.