CVE-2026-3009
Published: Mar 5, 2026
Modified: Mar 24, 2026
CVSS v3.1
8.1
Description
A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can reuse a previously generated login request to bypass the administrative restriction. This undermines access control enforcement and may allow unauthorized authentication through a disabled external provider.
| Vendor | Product | Versions |
|---|---|---|
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4.10-1 - < * |
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4-12 - < * |
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4-12 - < * |
Red Hat | Red Hat build of Keycloak 26.4.10 | All versions |
Red Hat | Red Hat JBoss Enterprise Application Platform 8 | All versions |
Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | All versions |
Red Hat | Red Hat Single Sign-On 7 | All versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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