Apache Struts Extras Before 2 has an Improper Output Neutralization for Logs Vulnerability
** 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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.struts:struts-extras | <= 1.3.10 | no fix |
| Java / Kotlin (Maven) | struts:struts | = 1.2.9 | no fix |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N- Weakness (CWE)
CWE-117- Platform
- Java / Kotlin (Maven)
- Package
org.apache.struts:struts-extras, struts:struts- Disclosed
- 30.07.2025
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-cx25-xg7c-xfm5 - CC BY 4.0
Vulnerability history: struts:struts
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 10
- First → latest
- 05.2022 07.2025
- Without a fix
- 6
- Exploited in attacks
- 1
Severity breakdown
- High 7
- Medium 2
- Low 1
Disclosures per year
- 2022: 7
- 2023: 2
- 2024: 0
- 2025: 1
- 2026: 0
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