CVE-2026-4628

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.

• CWE-284

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

Published

Mar 23, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

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