CVE-2026-95503
A flaw was found in the Kerberos federation provider of Keycloak, an open-source identity and access management solution. When Kerberos password authentication is used without SPNEGO, the system fails to verify the identity of the Key Distribution Center (KDC) by requesting a server ticket. This allows an attacker on the same network to spoof the KDC and bypass the authentication process, potentially gaining unauthorized access to user accounts.
- Published Sep 22, 2026
- CVSS 6.8 medium
- 0.2% chance of exploitation in the next 30 days (EPSS)