CVE-2025-54656 json
Apache Struts Extras: Improper Output Neutralization for Logs
published last yr. modified 4mo ago also EUVD-2025-23173 , GHSA-cx25-xg7c-xfm5
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
** 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.
Patch / fix
- Apache Software Foundation Apache Struts Extras 2
Is CVE-2025-54656 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.struts:struts-extras | <=1.3.10 |
no fix listed |
| maven | struts:struts | 1 listed version |
no fix listed |
Affected products
- Apache Software Foundation Apache Struts Extras
Classification
- Weakness
-
- CWE-117 Improper Output Neutralization for Logs
References
-
lists.apache.org
/thread/so5cn07j2zn9vlf1xnfqp630wts719rr
vendor-advisory, web, mailing-list
-
openwall.com
/lists/oss-security/2025/07/30/1
web
-
nvd.nist.gov
/vuln/detail/CVE-2025-54656
advisory
-
github.com
/apache/struts
package
Sources
- CVE List CVE-2025-54656
- GitHub Advisory GHSA-cx25-xg7c-xfm5
- NVD CVE-2025-54656
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.