CVE-2022-3916: Red Hat Keycloak

Medium severity, CVSS 6.8. EPSS: 1% chance of exploitation in the next 30 days.

A flaw was found in the offline_access scope in Keycloak. This issue would affect users of shared computers more (especially if cookies are not cleared), due to a lack of root session validation, and the reuse of session ids across root and user authentication sessions. This enables an attacker to resolve a user session attached to a previously authenticated user; when utilizing the refresh token, they will be issued a token for the original user.

Affected products

• Red Hat Keycloak: before 20.0.2 (fixed in 20.0.2)
• Red Hat Openshift Container Platform: version 4.9 only; version 4.10 only
• Red Hat Openshift Container Platform For Linuxone: version 4.9 only; version 4.10 only
• Red Hat Openshift Container Platform For Power: version 4.9 only; version 4.10 only
• Red Hat Openshift Container Platform IBM Z Systems: version 4.9 only; version 4.10 only
• Red Hat Single Sign-On: affected versions not specified; version 7.6 only

Published 2023-09-20. Last modified 2026-06-17.