CVE-2026-3047
HIGH severity · CVSS 8.8 · CWE-305
8.8CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://access.redhat.com/errata/RHSA-2026:3925Advisory
- https://access.redhat.com/errata/RHSA-2026:3926Advisory
- https://access.redhat.com/errata/RHSA-2026:3947Advisory
- https://access.redhat.com/errata/RHSA-2026:3948Advisory
- https://access.redhat.com/security/cve/CVE-2026-3047Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2441966Advisory