GHSA-m297-3jv9-m927

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    GHSA-m297-3jv9-m927

    Published: 5 Mar 2026Last Modified: 26 Aug 2026

    Summary: Keycloak allows authentication using an Identity Provider (IdP) even after it has been disabled by an administrator

    Details: 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.

    References: https://nvd.nist.gov/vuln/detail/CVE-2026-3009, https://github.com/keycloak/keycloak/issues/46911, https://github.com/keycloak/keycloak/commit/4fd5367e6cc28cfa68fb2240fc459c12b1fdbf2a, https://access.redhat.com/errata/RHSA-2026:3947, https://access.redhat.com/errata/RHSA-2026:3948, https://access.redhat.com/security/cve/CVE-2026-3009, https://bugzilla.redhat.com/show_bug.cgi?id=2441867, https://github.com/keycloak/keycloak, https://github.com/keycloak/keycloak/releases/tag/26.5.5

    Affected packages

    Package

    Name: org.keycloak:keycloak-services

    Purl: pkg:maven/org.keycloak/keycloak-services

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -26.5.5

    Affected versions

    1.0-alpha-1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-m297-3jv9-m927 | CVE-DB