GitHub Advisoryadvisory · Maven
GHSA-8cr3-vpxx-92cx Keycloak SAML Broken has Authentication Bypass by Primary Weakness
HIGH
Official page ↗
- Aliases
- CVE-2026-3047
- Ecosystem
- Maven
- Packages
- org.keycloak:keycloak-broker-saml
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-305
- Reviewed
- 2026-03-06
Affected packages
• Maven org.keycloak:keycloak-broker-saml: <= 1.8.1.Final (no fix yet)
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.
A fix is available at https://github.com/keycloak/keycloak/releases/tag/26.5.5.
Related
Alias · CVE (1)
- CVE-2026-3047 A flaw was found in org.keycloak.broker.saml. vulnerability
Weakness · CWE (1)
- CWE-305 Authentication Bypass by Primary Weakness weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-3047 advisory
- https://access.redhat.com/errata/RHSA-2026:3925 web
- https://access.redhat.com/errata/RHSA-2026:3926 web
- https://access.redhat.com/errata/RHSA-2026:3947 web
- https://access.redhat.com/errata/RHSA-2026:3948 web
- https://access.redhat.com/security/cve/CVE-2026-3047 web
- https://bugzilla.redhat.com/show_bug.cgi?id=2441966 web
- https://github.com/keycloak/keycloak package
- https://github.com/keycloak/keycloak/releases/tag/26.5.5 web