CVE-2026-11986: Keycloak Admin UI REST Extensions: bulk role-removal endpoints fail to perform granular permission checks
(updated )
A flaw was found in the admin-ui-ext component of Keycloak, which provides extended administrative user interface capabilities. The issue occurs because certain bulk role-removal endpoints fail to perform granular permission checks when deleting role mappings. This allows a delegated administrator with limited permissions to remove highly privileged roles from other users or groups, potentially disrupting administrative access control.
References
- access.redhat.com/errata/RHSA-2026:50848
- access.redhat.com/errata/RHSA-2026:50849
- access.redhat.com/security/cve/CVE-2026-11986
- bugzilla.redhat.com/show_bug.cgi?id=2487906
- github.com/advisories/GHSA-6w3v-mcfh-m3q7
- github.com/keycloak/keycloak/commit/f3831f01fd4abceb47e9675ab5f4c17268ba9e9d
- github.com/keycloak/keycloak/issues/49766
- github.com/keycloak/keycloak/pull/49826
- github.com/keycloak/keycloak/releases/tag/26.7.0
- nvd.nist.gov/vuln/detail/CVE-2026-11986
Code Behaviors & Features
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