CVE-2026-4628

Description

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access (UMA) resource_set endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control checks on PUT operations to the resource_set endpoint. This issue enables unauthorized modification of protected resources, impacting data integrity.

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Produits concernés

• Red Hat build of Keycloak 26.4.12
• Red Hat Build of Keycloak
• Red Hat JBoss Enterprise Application Platform 8
• Red Hat JBoss Enterprise Application Platform Expansion Pack
• Red Hat Single Sign-On 7
• Redhat build of keycloak

Scores CVSS

Faiblesses (CWE)

• CWE-284

Références

• https://access.redhat.com/errata/RHSA-2026:19596
• https://access.redhat.com/security/cve/CVE-2026-4628 Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2450240 Issue TrackingVendor Advisory

Ailleurs

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