medium4.9
CVE-2026-11986
A flaw was found in the admin-ui-ext component of Keycloak, which provides extended administrative user interface capabilities.
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.keycloak:keycloak-rest-admin-ui-ext | < 26.7.0 | 26.7.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Build Of Keycloak | from 26.6 before 26.6.5 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-6w3v-mcfh-m3q7
- https://nvd.nist.gov/vuln/detail/CVE-2026-11986
- https://access.redhat.com/security/cve/CVE-2026-11986
- https://bugzilla.redhat.com/show_bug.cgi?id=2487906
- https://access.redhat.com/errata/RHSA-2026:50848
- https://access.redhat.com/errata/RHSA-2026:50849
- https://github.com/keycloak/keycloak/issues/49766
- https://github.com/keycloak/keycloak/pull/49826
- https://github.com/keycloak/keycloak/commit/f3831f01fd4abceb47e9675ab5f4c17268ba9e9d
- https://github.com/keycloak/keycloak/releases/tag/26.7.0