CVE-2026-14209

Description

A vulnerability was discovered in Keycloak's Admin UI extension that allows certain administrative users to bypass security restrictions. When Fine-Grained Admin Permissions (FGAPv2) are enabled, an administrator who should only be able to search for users (but not view their full details) can use a specific "brute-force-user" endpoint to access a user's full profile. This includes sensitive information and security metadata. The issue occurs because the system fails to check if the administrator has the required "view" permission for that specific user when using this particular search path.

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Produits concernés

• Red Hat build of Keycloak 26.4
• Red Hat build of Keycloak 26.4.14
• Red Hat build of Keycloak 26.6
• Red Hat build of Keycloak 26.6.5
• Red Hat JBoss Enterprise Application Platform Expansion Pack
• Redhat build of keycloak
• Redhat jboss enterprise application platform expansion pack

Scores CVSS

Faiblesses (CWE)

• CWE-639

Références

• https://access.redhat.com/errata/RHSA-2026:50846
• https://access.redhat.com/errata/RHSA-2026:50847
• https://access.redhat.com/errata/RHSA-2026:50848
• https://access.redhat.com/errata/RHSA-2026:50849
• https://access.redhat.com/security/cve/CVE-2026-14209 Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2494837 Vendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories