CVE-2025-54656: struts extras — Fix

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.

Is your site exposed to CVE-2025-54656?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-117 CWE-117

Affected Products

Vendor	Product	Versions
apache	struts_extras	< 2.0

References

Advisories & Patches

https://lists.apache.org/thread/so5cn07j2zn9vlf1xnfqp630wts719rr

Other References

http://www.openwall.com/lists/oss-security/2025/07/30/1

Frequently Asked Questions

What is CVE-2025-54656? +

** 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. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-54656? +

CVE-2025-54656 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-54656? +

CVE-2025-54656 affects products from apache, specifically: struts_extras. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-54656? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-10745

Improper output neutralization for logs vulnerability in upKeeper Solutions upKeeper Instant Privilege Access on Windows allows Log Injection-Tampering-Forging. This issue …

CVE-2025-10217

A vulnerability exists in Asset Suite for an authenticated user to manipulate the content of performance related log data or …

CVE-2026-12616

The /v1/upload/sbom endpoint extracts the iss claim from the attacker-supplied JWT with signature verification disabled, then interpolates that string into …

CVE-2025-49846

wire-ios is an iOS client for the Wire secure messaging application. From Wire iOS 3.111.1 to before 3.124.1, messages that …

CVE-2026-62948 9.6

OpenWrt is a Linux operating system targeting embedded devices. Prior to 25.12.5, odhcpd writes a DHCPv6 client FQDN option 39 …

CVE-2024-0095 9.0

NVIDIA Triton Inference Server for Linux and Windows contains a vulnerability where a user can inject forged logs and executable …

CVE-2025-54656