No exploitation reportedFix available

CVE-2025-54656

Q: Is CVE-2025-54656 actively exploited?

Active exploitation of CVE-2025-54656 has not been confirmed. Its EPSS score was 0.6% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2025-54656?

CVE-2025-54656 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

No exploitation reported by the sources we read.

Published2025-07-30
Fixed in2.0
WeaknessCWE-117

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2025-07-3016:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-54656?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-54656?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Apache struts extras

Branch	Affected	Fixed in	Source
2.0	< 2.0	2.0	NVD

struts

Branch	Affected	Fixed in	Source
—	all versions	no fix published	OSV

struts-extras

Branch	Affected	Fixed in	Source
1.3	≤ 1.3.10	no fix published	OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Apache struts extras to 2.0

Advisories and patches

lists.apache.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionnone2025-07-30
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.16.52025-07-30
CNAweakness (CWE)CWE-117read 2026-10-23
FIRST EPSSEPSS score0.6 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Published: 2025-07-30
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2025-54656?

Is CVE-2025-54656 actively exploited?

Active exploitation of CVE-2025-54656 has not been confirmed. Its EPSS score was 0.6% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-54656?

CVE-2025-54656 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

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