CVE-2023-24456
Session fixation vulnerability in Jenkins Keycloak Authentication Plugin
Jenkins Keycloak Authentication Plugin 2.3.0 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
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Jenkins Keycloak Authentication Plugin 2.3.0 and earlier does not invalidate the previous session on login.
- Record
CVE-2023-24456- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-384
- Updated
- 2026-11-02
CVE List
Jenkins Keycloak Authentication Plugin 2.3.0 and earlier does not invalidate the previous session on login.
- Record
CVE-2023-24456- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-384
- Updated
- 2026-11-02
EUVDEUVD-2023-0427
Jenkins Keycloak Authentication Plugin 2.3.0 and earlier does not invalidate the previous session on login.
- Record
EUVD-2023-0427- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-9963-gmh8-vvm6
Session fixation vulnerability in Jenkins Keycloak Authentication Plugin
Jenkins Keycloak Authentication Plugin 2.3.0 and earlier does not invalidate the previous session on login.
- Record
GHSA-9963-gmh8-vvm6- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-384
- Updated
- 2026-11-02
OSVGHSA-9963-gmh8-vvm6
Session fixation vulnerability in Jenkins Keycloak Authentication Plugin
Jenkins Keycloak Authentication Plugin 2.3.0 and earlier does not invalidate the previous session on login.
- Record
GHSA-9963-gmh8-vvm6- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:keycloakMaven |
through 2.3.0 | 2.3.1 |
org.jenkins-ci.plugins:keycloakMaven |
before 2.3.1, plus listed versions 2.0.12.0.22.0.32.1.02.1.12.2.02.3.0 |
2.3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-24456 is a critical vulnerability (CVSS 9.8) in Jenkins Keycloak Authentication, published January 24, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.24%, the 69th percentile. Fixed in org.jenkins-ci.plugins:keycloak 2.3.1.