Keycloak vulnerabilities, page 2

21 vulnerabilities

Known vulnerabilities in Keycloak products, newest first, with CVSS severity, EPSS, KEV listings and ransomware use, across 3 products.

7.4CVE-2026-90997keycloakkeycloak
EPSS score
0.40%
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 security artifacts, such as JWT client assertions, DPoP proofs, or one-time password (TOTP) codes, to replay them. Successful exploitation grants unauthorized access to the token endpoint or login flow.