REDHAT-BUG-2494675: Low severity Apache Tomcat vulnerability
Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty authorisation constraints were not included when the effective web.xml was logged.
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. 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 fixes the issue.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache Tomcatto a version that resolves this vulnerability.Fixed in 11.0.23 - Upgrade
Upgrade
Apache Tomcatto a version that resolves this vulnerability.Fixed in 10.1.56 - Upgrade
Upgrade
Apache Tomcatto a version that resolves this vulnerability.Fixed in 9.0.119
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2494675?
The severity of REDHAT-BUG-2494675 is rated as low.
How do I fix REDHAT-BUG-2494675?
To fix REDHAT-BUG-2494675, upgrade to a fixed version of Apache Tomcat beyond the affected versions.
What is the impact of REDHAT-BUG-2494675?
REDHAT-BUG-2494675 can lead to improper logging of authorization constraints in Apache Tomcat.
Which versions of Apache Tomcat are affected by REDHAT-BUG-2494675?
REDHAT-BUG-2494675 affects Apache Tomcat versions from 11.0.0-M1 through 11.0.22, 10.1.0-M1 through 10.1.55, and several 9.x versions.
When was REDHAT-BUG-2494675 published?
REDHAT-BUG-2494675 was published on June 29, 2026.