CVE-2026-112208

Fixes and workarounds

Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. --- CME Mitigation Guidance (2026-11-06) --- Disclaimer: The following mitigation solutions are provided as a courtesy, pending the application of an official patch. This content was generated utilizing AI tools in conjunction with data from https://cmetaxonomy.org. Customers are advised to independently evaluate and test these temporary mitigations within their own infrastructure. The highest-value action is to ensure the SSO_AUTH re-authentication note is cleared from the authentication session whenever a flow transition strips the authenticated user: upgrade to Red Hat build of Keycloak 26.6.8 (or the fixed Rhbk/Keycloak Rhel/Keycloak Services builds), which clears the lingering SSO_AUTH re-authentication note from the authentication session during login flow transitions such as registration or credential reset, closing all 2 injection vectors (transition to credential reset flow, transition to registration flow). Until patched, this is a concern on Keycloak deployments with the Organization feature enabled and users holding credentials in multiple organizations, so Disable the Organization feature or ensure users cannot hold memberships across multiple organizations. These controls limit blast radius and contain exploitation, but they do not fix the underlying stale authentication state flag defect — apply the upstream patch to fully remediate.