CVE-2023-32997
Jenkins CAS Plugin Session Fixation vulnerability
Jenkins CAS Plugin 1.6.2 and earlier does not invalidate the previous session on login.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Jenkins CAS Plugin 1.6.2 and earlier does not invalidate the previous session on login.
- Record
CVE-2023-32997- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-384
- Updated
- 2026-11-02
CVE List
Jenkins CAS Plugin 1.6.2 and earlier does not invalidate the previous session on login.
- Record
CVE-2023-32997- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-384
- Updated
- 2026-11-02
EUVDEUVD-2023-1559
Jenkins CAS Plugin 1.6.2 and earlier does not invalidate the previous session on login.
- Record
EUVD-2023-1559- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hjh8-9gxh-cx4x
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.
- Record
GHSA-hjh8-9gxh-cx4x- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-384
- Updated
- 2026-11-02
OSV
Jenkins CAS Plugin 1.6.2 and earlier does not invalidate the previous session on login.
- Record
CVE-2023-32997- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-hjh8-9gxh-cx4x
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.
- Record
GHSA-hjh8-9gxh-cx4x- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-384
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.jenkins-ci.plugins:cas-pluginMaven |
before 1.6.3 | 1.6.3 |
org.jenkins-ci.plugins:cas-pluginMaven |
before 1.6.3, plus listed versions 1.0.01.1.01.1.11.1.21.2.0 Show 9 moreShow less1.3.01.4.01.4.11.4.21.4.31.5.01.6.01.6.11.6.2 |
1.6.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-32997 is a high vulnerability (CVSS 8.8) in Jenkins Cas, published May 16, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.79%, the 56th percentile. Fixed in org.jenkins-ci.plugins:cas-plugin 1.6.3.