CVE-2026-57288: Vulnerability in Jenkins Project Jenkins Active Directory Plugin
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.
AI Analysis
Technical Summary
The Jenkins Active Directory Plugin up to version 2.41.1 fails to escape user names before building LDAP search filters in the ADSI authentication path. This allows unauthenticated attackers to perform LDAP injection using wildcard characters, enabling them to enumerate directory entries and authenticate as a matching user if they know the user's password, bypassing the need to know the exact user name.
Potential Impact
Unauthenticated attackers can enumerate Active Directory entries and authenticate as users whose passwords they know without knowing their exact user names. This could lead to unauthorized access to Jenkins instances integrated with Active Directory authentication, potentially compromising system integrity and confidentiality.
Mitigation Recommendations
Patch status is not yet confirmed — check the Jenkins Project vendor advisory for current remediation guidance. Until a fix is available, consider restricting access to the Jenkins Active Directory Plugin authentication path or applying compensating controls to limit exposure.
CVE-2026-57288: Vulnerability in Jenkins Project Jenkins Active Directory Plugin
Description
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.
CVSS v3.1
Score 3.7low
Affected software
pkg:github/jenkinsci/active-directory-pluginRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Jenkins Active Directory Plugin up to version 2.41.1 fails to escape user names before building LDAP search filters in the ADSI authentication path. This allows unauthenticated attackers to perform LDAP injection using wildcard characters, enabling them to enumerate directory entries and authenticate as a matching user if they know the user's password, bypassing the need to know the exact user name.
Potential Impact
Unauthenticated attackers can enumerate Active Directory entries and authenticate as users whose passwords they know without knowing their exact user names. This could lead to unauthorized access to Jenkins instances integrated with Active Directory authentication, potentially compromising system integrity and confidentiality.
Mitigation Recommendations
Patch status is not yet confirmed — check the Jenkins Project vendor advisory for current remediation guidance. Until a fix is available, consider restricting access to the Jenkins Active Directory Plugin authentication path or applying compensating controls to limit exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jenkins
- Date Reserved
- 2026-06-24T08:41:44.358Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3be195eed863c81eeb98ec
Added to database: 06/24/2026, 13:54:29 UTC
Last enriched: 06/24/2026, 14:11:43 UTC
Last updated: 06/24/2026, 19:41:11 UTC
Views: 7
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