LDAP injection in Jenkins Active Directory Plugin
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub.
Summary
Jenkins Active Directory Plugin 2.41.1 and earlier does not escape the user name before building the LDAP search filter in the Windows native (ADSI) authentication path, allowing unauthenticated attackers to inject LDAP wildcard characters to enumerate directory entries and to authenticate as a matching user whose password they know without knowing their exact user name.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Jenkins | Jenkins Active Directory Plugin | up to 2.41.1 | — | No fix listed | CNA |
| — | org.jenkins-ci.plugins:active-directory (Maven) | before 2.41.2 | 2.41.2 | Patch available | GHSA-gx55-p8g7-p3fh |
- Jenkins Active Directory Plugin VendorJenkins Affected up to 2.41.1 Fixed in — No fix listed CNA
- org.jenkins-ci.plugins:active-directory (Maven) Vendor— Affected before 2.41.2 Fixed in 2.41.2 Patch available GHSA-gx55-p8g7-p3fh
Remediation
- Fix · GHSA-gx55-p8g7-p3fh org.jenkins-ci.plugins:active-directory (Maven) Fixed in 2.41.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-57288
- 2026-10-03 Alias added: GHSA-gx55-p8g7-p3fh
References
More Jenkins Active Directory vulnerabilities
- TI-2020-02178 Improper authentication in Jenkins Active Directory Plugin CVSS 3.1CRITICAL 9.8
- TI-2020-02177 Improper authentication in Jenkins Active Directory Plugin CVSS 3.1CRITICAL 9.8
- TI-2020-02176 Improper authentication in Jenkins Active Directory Plugin CVSS 3.1CRITICAL 9.8
- TI-2017-01899 Improper certificate validation in Jenkins Active Directory Jenkins plugin CVSS 3.0HIGH 8.1
- TI-2019-15854 Improper certificate validation in Jenkins Active Directory Plugin CVSS 3.0HIGH 7.4
- TI-2026-36178 Jenkins Active Directory Plugin 2.41 and earlier deserializes data from LDAP referrals without validation. CVSS 3.1MEDIUM 6.6
Sources
- CVE-2026-57288 · CVE Program
- CVE-2026-57288 · NVD
- FIRST EPSS
- GHSA-gx55-p8g7-p3fh · GitHub Advisory Database · CC BY 4.0
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