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.
- Score
- CVSS 3.1 4.3 Medium
- Status
- Modified - secalert@redhat.com
- Published
- 2026-03-23
- Last modified
- 2026-10-22
- Weaknesses
- CWE-284
Affected products
- Build Keycloak (Redhat)
- Build Of Keycloak (Redhat)
- Jboss Enterprise Application Platform (Redhat)
- Jbosseapxp (Redhat)
- Red Hat Single Sign On (Redhat)
References
- https://access.redhat.com/errata/RHSA-2026:19596
- https://access.redhat.com/security/cve/CVE-2026-4628
- https://bugzilla.redhat.com/show_bug.cgi?id=2450240
