CVE-2023-24456: Jenkins Keycloak Authentication

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

Jenkins Keycloak Authentication Plugin 2.3.0 and earlier does not invalidate the previous session on login.

Affected products

• Jenkins Keycloak Authentication: up to and including 2.3.0

Published 2023-01-26. Last modified 2026-06-17.