Keycloak is an open-source identity and access management solution. A vulnerability was discovered where a user with the impersonation role can impersonate a realm administrator. This allows the attacker to gain full administrative control over the realm, including the ability to manage users, clients, and roles.

Keycloak is an open-source identity and access management solution. A vulnerability was discovered where a user with the impersonation role can impersonate a realm administrator. This allows the attacker to gain full administrative control over the realm, including the ability to manage users, clients, and roles.

keycloak-services: keycloak-services: Privilege escalation via impersonation role allows takeover of realm administrator accounts keycloak-services: keycloak-services: SAML Redirect DEFLATE helpers leak native zlib state keycloak-services: keycloak-services: Broker-originated username collision causes account lockout keycloak-services: keycloak-services: Incomplete fix for arbitrary filesystem path probing via keystore parameters io.netty/netty-handler: Netty: TLS hostname verification bypass via OpenSSL client path misconfiguration keycloak-services: keycloak-services: Incomplete fix for CVE-2026-15573 allows policy enforcer bypass via percent-encoded URI segments keycloak-services: keycloak-services: unauthenticated DoS via unbounded locale caching

Ein Angreifer kann mehrere Schwachstellen in Keycloak ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen und um Informationen offenzulegen.