Improper Authentication (empty password) in Jenkins Active Directory Plugin
Jenkins Active Directory Plugin implements two separate modes: Integration with ADSI on Windows, and an OS agnostic LDAP-based mode.
The Windows/ADSI mode does not specifically prohibit use of empty passwords in Active Directory Plugin prior to 2.20 and 2.16.1. If the Active Directory server allows the unauthenticated bind operation, this allows attackers to log in to Jenkins as any user by providing an empty password.
Jenkins Active Directory Plugin 2.20 and 2.16.1 prohibits the use of an empty password to log in.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.jenkins-ci.plugins:active-directory | >= 2.17, < 2.20, < 2.16.1 | 2.20, 2.16.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-2300
- https://github.com/jenkinsci/active-directory-plugin/commit/57e78ea7bb96b4e59405f28959ade2d26821163d
- https://github.com/CVEProject/cvelist/blob/381fe967666a5ce01625a7a050427aa4757e3ca6/2020/2xxx/CVE-2020-2300.json
- https://github.com/jenkinsci/active-directory-plugin
- https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2099
- http://www.openwall.com/lists/oss-security/2020/11/04/6
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-287- Platform
- Java / Kotlin (Maven)
- Package
org.jenkins-ci.plugins:active-directory- Disclosed
- 24.05.2022
- Updated
- 11.10.2026 11:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-8wcw-cw2f-h4g2 - CC BY 4.0
Vulnerability history: org.jenkins-ci.plugins:active-directory
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
- 12
- First → latest
- 01.2022 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 3
- High 2
- Medium 6
- Low 1
Disclosures per year
- 2022: 8
- 2023: 1
- 2024: 0
- 2025: 0
- 2026: 3
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Improper Authentication (empty password) in Jenkins Active Directory Plugin this entry
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