CVE-2026-55956CWE-285

Apache Tomcat: Security constraints for default servlet ignored method

Medium · published June 29, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
52.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00695 · 52.4th percentile
Weakness
CWE-285 · Improper Authorization
Published
2026-06-29T20:46Z
EPSS history
Timeline
  • 29 JUN 20:46Z
    Apache Tomcat: Security constraints for default servlet ignored method
    cvelistv5