CVE-2018-10912: Red Hat Keycloak

Medium severity, CVSS 4.9. EPSS: 1.3% chance of exploitation in the next 30 days.

keycloak before version 4.0.0.final is vulnerable to a infinite loop in session replacement. A Keycloak cluster with multiple nodes could mishandle an expired session replacement and lead to an infinite loop. A malicious authenticated user could use this flaw to achieve Denial of Service on the server.

Affected products

• Red Hat Keycloak: before 4.0.0 (fixed in 4.0.0)
• Red Hat Single Sign-On: version 7.2 only

Published 2018-07-23. Last modified 2026-06-17.