HIGH8.1
GHSA-m297-3jv9-m927
Keycloak allows authentication using an Identity Provider (IdP) even after it has been disabled by an administrator
Quick fix
GHSA-m297-3jv9-m927 — org.keycloak:keycloak-services: upgrade to the fixed version with the command below.
# pom.xml: bump <version>26.5.5</version> for org.keycloak:keycloak-servicesDetails
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.
Are you affected?
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Affected packages
Maven/org.keycloak:keycloak-services
Introduced in:
0Fixed in: 26.5.5Fix
# pom.xml: bump <version>26.5.5</version> for org.keycloak:keycloak-servicesReferences
- https://nvd.nist.gov/vuln/detail/CVE-2026-3009[ADVISORY]
- https://github.com/keycloak/keycloak/issues/46911[WEB]
- https://github.com/keycloak/keycloak/commit/4fd5367e6cc28cfa68fb2240fc459c12b1fdbf2a[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-2026-3009[WEB]
- https://bugzilla.redhat.com/show_bug.cgi?id=2441867[WEB]
- https://github.com/keycloak/keycloak[PACKAGE]
- https://github.com/keycloak/keycloak/releases/tag/26.5.5[WEB]