CVE-2026-16105

Description

A flaw was found in the RoleContainerResource component of Keycloak. The issue occurs because certain name-based endpoints in the admin REST API do not properly enforce authorization checks when managing composite roles. This allows a delegated administrator with manage-realm permissions to remove essential child roles from built-in admin roles, potentially disrupting administrative functions within a realm.

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Produits concernés

• Red Hat build of Keycloak 26.6
• Red Hat build of Keycloak 26.6.7
• Red Hat Data Grid 8
• Red Hat JBoss Enterprise Application Platform Expansion Pack
• Red Hat Single Sign-On 7
• Redhat build of keycloak

Scores CVSS

Faiblesses (CWE)

• CWE-639
• CWE-862

Références

• https://access.redhat.com/errata/RHSA-2026:68277
• https://access.redhat.com/errata/RHSA-2026:68278
• https://access.redhat.com/security/cve/CVE-2026-16105 Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2501738 Issue TrackingVendor Advisory

Ailleurs

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