Vulnerability Details CVE-2026-11986
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 23.0%
CVSS Severity
CVSS v3 Score 4.9
References
Products affected by CVE-2026-11986
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cpe:2.3:a:redhat:build_of_keycloak:26.6
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cpe:2.3:a:redhat:build_of_keycloak:26.6.3
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cpe:2.3:a:redhat:build_of_keycloak:26.6.4