Jenkins CAS Plugin Session Fixation vulnerability
Jenkins CAS Plugin 1.6.2 and earlier does not invalidate the existing session on login.
This allows attackers to use social engineering techniques to gain administrator access to Jenkins.
CAS Plugin 1.6.3 invalidates the existing session on login.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.jenkins-ci.plugins:cas-plugin | < 1.6.3 | 1.6.3 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-384- Platform
- Java / Kotlin (Maven)
- Package
org.jenkins-ci.plugins:cas-plugin- Disclosed
- 16.05.2023
- Updated
- 11.10.2026 11:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-hjh8-9gxh-cx4x - CC BY 4.0
Vulnerability history: org.jenkins-ci.plugins:cas-plugin
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
- 3
- First → latest
- 05.2022 05.2023
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 2
Disclosures per year
- 2022: 2
- 2023: 1
- 2024: 0
- 2025: 0
- 2026: 0
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Jenkins CAS Plugin Session Fixation vulnerability this entry
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