Org.keycloak/keycloak-services: improper enforcement of disabled identity provider in identitybrokerservice (authentication bypass) (Red Hat Red Hat build of Keycloak 26.4)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.38 % · percentile 32 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-863 — Incorrect Authorization
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | redhat |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | redhat-SADP |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | NVD · secalert@redhat.com (Secondary) |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Advisories
- GHSA-m297-3jv9-m927 — Keycloak allows authentication using an Identity Provider (IdP) even after it has been disabled by an administrator
European references
- ENISA EUVD · EUVD-2026-9863
- GCVE · GCVE-0-2026-3009
Affected configurations (NVD CPE)
cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:text-only:*:*:*cpe:2.3:a:redhat:build_of_keycloak:26.4:*:*:*:*:*:*:*cpe:2.3:a:redhat:build_of_keycloak:26.4.10:*:*:*:*:*:*:*cpe:2.3:a:redhat:jboss_enterprise_application_platform:8.0:*:*:*:*:*:*:*cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:*cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*
Affected products
| 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 | |
| Red Hat · Red Hat JBoss Enterprise Application Platform 8 | |
| Red Hat · Red Hat JBoss Enterprise Application Platform Expansion Pack | |
| Red Hat · Red Hat Single Sign-On 7 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |