Threats Tagged 'cve-2026-16093'

Red Hat has released a security update for the Red Hat build of Keycloak 26.6.7 images used in OpenShift Container Platform. This update addresses multiple security vulnerabilities including information disclosure, privilege escalation, authorization bypasses, remote code execution, and denial of service issues. The update provides new container images that align with the standalone Keycloak product release. Users of Red Hat build of Keycloak 26.6.7 are advised to apply the update to mitigate these risks.

Red Hat has released a security update for Red Hat build of Keycloak 26.6.7 addressing multiple vulnerabilities. These include issues such as information disclosure, privilege escalation, authorization bypasses, remote code execution, and denial of service. The update fixes a wide range of security flaws affecting authentication, authorization, token handling, and endpoint protections. Users of affected versions are advised to apply the update to mitigate these risks.

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned assertion header that tricks the system into thinking the policy requirements have been met. This allows the attacker to authenticate using simpler methods like a client secret even when the administrator has mandated more secure, signed assertions.