REDHAT-BUG-2494676: Medium severity Apache Tomcat vulnerability

Published Jun 29, 2026
·
Updated

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 Software

5 affected components
Apache Tomcat>11.0.0-M1<=11.0.22
Apache Tomcat>10.1.0-M1<=10.1.55
Apache Tomcat>=9.0.0.M1<=9.0.118
Apache Tomcat>=8.5.0<=8.5.100
Apache Tomcat>=7.0.0<=7.0.109

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 11.0.23
  2. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 10.1.56
  3. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 9.0.119

Event History

Jun 29, 2026
Data Sourced
via Red Hat·09:02 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2494676?

The severity of REDHAT-BUG-2494676 is classified as medium (4).

2

How do I fix REDHAT-BUG-2494676?

To fix REDHAT-BUG-2494676, update Apache Tomcat to a version that is not affected by this vulnerability.

3

Which versions of Apache Tomcat are affected by REDHAT-BUG-2494676?

Apache Tomcat versions from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, and from 9.x are affected by REDHAT-BUG-2494676.

4

What type of vulnerability is REDHAT-BUG-2494676?

REDHAT-BUG-2494676 is an Improper Authorization vulnerability in Apache Tomcat.

5

What are the consequences of exploiting REDHAT-BUG-2494676?

Exploiting REDHAT-BUG-2494676 can lead to security constraints being ignored for the default servlet, potentially allowing unauthorized access.

Contact

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