Keycloak Admin UI REST Extensions: bulk role-removal endpoints fail to perform granular permission checks
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.keycloak:keycloak-rest-admin-ui-ext | < 26.7.0 | 26.7.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-11986
- https://github.com/keycloak/keycloak/issues/49766
- https://github.com/keycloak/keycloak/pull/49826
- https://github.com/keycloak/keycloak/commit/f3831f01fd4abceb47e9675ab5f4c17268ba9e9d
- https://access.redhat.com/errata/RHSA-2026:50848
- https://access.redhat.com/errata/RHSA-2026:50849
- https://access.redhat.com/security/cve/CVE-2026-11986
- https://bugzilla.redhat.com/show_bug.cgi?id=2487906
- https://github.com/keycloak/keycloak
- https://github.com/keycloak/keycloak/releases/tag/26.7.0
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-425- Platform
- Java / Kotlin (Maven)
- Package
org.keycloak:keycloak-rest-admin-ui-ext- Disclosed
- 11.06.2026
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-6w3v-mcfh-m3q7 - CC BY 4.0
Vulnerability history: org.keycloak:keycloak-rest-admin-ui-ext
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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