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Moderate severityNVD Advisory· Published Jun 16, 2025· Updated Nov 3, 2025

Apache Tomcat: Security constraint bypass for pre/post-resources

CVE-2025-49125

Description

Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Tomcat.  When using PreResources or PostResources mounted other than at the root of the web application, it was possible to access those resources via an unexpected path. That path was likely not to be protected by the same security constraints as the expected path, allowing those security constraints to be bypassed.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.7, from 10.1.0-M1 through 10.1.41, from 9.0.0.M1 through 9.0.105. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected.

Users are recommended to upgrade to version 11.0.8, 10.1.42 or 9.0.106, which fix the issue.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
org.apache.tomcat:tomcat-catalinaMaven
>= 11.0.0-M1, < 11.0.811.0.8
org.apache.tomcat:tomcat-catalinaMaven
>= 10.1.0-M1, < 10.1.4210.1.42
org.apache.tomcat:tomcat-catalinaMaven
>= 9.0.0.M1, < 9.0.1069.0.106
org.apache.tomcat.embed:tomcat-embed-coreMaven
>= 11.0.0-M1, < 11.0.811.0.8
org.apache.tomcat.embed:tomcat-embed-coreMaven
>= 10.1.0-M1, < 10.1.4210.1.42
org.apache.tomcat.embed:tomcat-embed-coreMaven
>= 9.0.0.M1, < 9.0.1069.0.106
org.apache.tomcat:tomcat-catalinaMaven
>= 8.5.0, <= 8.5.100—
org.apache.tomcat.embed:tomcat-embed-coreMaven
>= 8.5.0, <= 8.5.100—

Affected products

64

Patches

Vulnerability mechanics

References

11

News mentions

0

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