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Message-ID: <f3ea942d-ef80-ae1d-1dac-c205352195dd@apache.org>
Date: Wed, 30 Jul 2025 13:21:47 +0000
From: Arnout Engelen <engelen@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2025-54656: Apache Struts Extras: Improper Output
 Neutralization for Logs 

Severity: low 

Affected versions:

- Apache Struts Extras (org.apache.struts:struts-extras) before 2

Description:

** UNSUPPORTED WHEN ASSIGNED ** Improper Output Neutralization for Logs vulnerability in Apache Struts.

This issue affects Apache Struts Extras: before 2.

When using LookupDispatchAction, in some cases, Struts may print untrusted input to the logs without any filtering. Specially-crafted input may lead to log output where part of the message masquerades as a separate log line, confusing consumers of the logs (either human or automated). 

As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users.

NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Credit:

Ryan Murphy of HeroDevs (finder)

References:

https://struts.apache.org/
https://www.cve.org/CVERecord?id=CVE-2025-54656

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