FKIE_CVE-2026-3009

Vulnerability from fkie_nvd - Published: 2026-03-05 19:16 - Updated: 2026-09-14 13:18
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Summary
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
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:3947Vendor Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:3948Vendor Advisory
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2026-3009Vendor Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2441867Issue Tracking, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:3947Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/errata/RHSA-2026:3948Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/security/cve/CVE-2026-3009Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2441867Issue Tracking, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3009.json
Impacted products
Vendor Product Version
redhat build_of_keycloak -
redhat build_of_keycloak 26.4
redhat build_of_keycloak 26.4.10
redhat jboss_enterprise_application_platform 8.0
redhat jboss_enterprise_application_platform_expansion_pack -
redhat single_sign-on 7.0
To clipboard 

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      "value": "Una falla de seguridad en el endpoint IdentityBrokerService.performLogin de Keycloak permite que la autenticaci\u00f3n proceda usando un Proveedor de Identidad (IdP) incluso despu\u00e9s de haber sido deshabilitado por un administrador. Un atacante que conoce el alias del IdP puede reutilizar una solicitud de inicio de sesi\u00f3n generada previamente para eludir la restricci\u00f3n administrativa. Esto socava la aplicaci\u00f3n del control de acceso y puede permitir la autenticaci\u00f3n no autorizada a trav\u00e9s de un proveedor externo deshabilitado."
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  "lastModified": "2026-09-14T13:18:31.887",
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