CVE-2025-24813

Path Equivalence: 'file.Name' (Internal Dot) leading toRemote Code Execution and/or Information disclosureand/or malicious content added to uploaded files via write enabledDefault Servletin Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.2, from 10.1.0-M1 through 10.1.34, from 9.0.0.M1 through 9.0.98.
The following versions were EOL at the time the CVE was created but are 
known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions 
may also be affected.


If all of the following were true, a malicious user was able to view       security sensitive files and/or inject content into those files:
-writes enabled for the default servlet (disabled by default)
- support for partial PUT (enabled by default)
- a target URL for security sensitive uploads that was a sub-directory ofa target URL for public uploads
-attacker knowledge of the names of security sensitive files beinguploaded
-the security sensitive files also being uploaded via partial PUT

If all of the following were true, a malicious user was able to       perform remote code execution:
- writes enabled for the default servlet (disabled by default)
-support for partial PUT (enabled by default)
-application was using Tomcat's file based session persistence with thedefault storage location
-application included a library that may be leveraged in adeserialization attack

Users are recommended to upgrade to version 11.0.3, 10.1.35 or 9.0.99, which fixes the issue.