Description
A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions.
Problem types
Authentication Bypass by Primary Weakness
Product status
26.2.14-1 (rpm) before *
26.2-16 (rpm) before *
26.2-16 (rpm) before *
26.4.10-1 (rpm) before *
26.4-12 (rpm) before *
26.4-12 (rpm) before *
Timeline
| 2026-02-23: | Reported to Red Hat. |
| 2026-03-05: | Made public. |
References
access.redhat.com/errata/RHSA-2026:3925 (RHSA-2026:3925)
access.redhat.com/errata/RHSA-2026:3926 (RHSA-2026:3926)
access.redhat.com/errata/RHSA-2026:3947 (RHSA-2026:3947)
access.redhat.com/errata/RHSA-2026:3948 (RHSA-2026:3948)
access.redhat.com/security/cve/CVE-2026-3047
bugzilla.redhat.com/show_bug.cgi?id=2441966 (RHBZ#2441966)