CVE-2026-90997: Authentication Bypass by Capture-replay

A flaw was found in Keycloak. When deployed in stateless mode with MySQL or MariaDB, a mismatch in row-count semantics between the database driver and Keycloak's application logic allows an attacker to bypass replay protection. This vulnerability enables an attacker who intercepts single-use...

PT-2026-95069

Name of the Vulnerable Software and Affected Versions Keycloak versions 26.7.0 through 26.7.3 Description A flaw exists when the software is deployed in stateless mode using MySQL or MariaDB. A mismatch in row-count semantics between the database driver and the application logic allows the replay...