{
"id": "GHSA-6w3v-mcfh-m3q7",
"aliases": [
"CVE-2026-11986"
],
"details": "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.",
"summary": "Keycloak Admin UI REST Extensions: bulk role-removal endpoints fail to perform granular permission checks",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "26.7.0"
}
]
}
],
"package": {
"name": "org.keycloak:keycloak-rest-admin-ui-ext",
"ecosystem": "Maven"
}
}
],
"modified": "2026-08-19T19:32:02Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N"
}
],
"published": "2026-06-11T18:31:34Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11986",
"type": "ADVISORY"
},
{
"url": "https://github.com/keycloak/keycloak/issues/49766",
"type": "WEB"
},
{
"url": "https://github.com/keycloak/keycloak/pull/49826",
"type": "WEB"
},
{
"url": "https://github.com/keycloak/keycloak/commit/f3831f01fd4abceb47e9675ab5f4c17268ba9e9d",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:50848",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:50849",
"type": "WEB"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-11986",
"type": "WEB"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487906",
"type": "WEB"
},
{
"url": "https://github.com/keycloak/keycloak",
"type": "PACKAGE"
},
{
"url": "https://github.com/keycloak/keycloak/releases/tag/26.7.0",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-425"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-06-11T18:16:25Z",
"github_reviewed_at": "2026-08-19T19:32:02Z"
}
}