A flaw was found in Keycloak. An authenticated user with the view-users role could exploit a vulnerability in the UserResource component. By accessing a specific administrative endpoint, this user could improperly retrieve user attributes that were configured to be hidden. This unauthorized information disclosure could expose sensitive user data.
{
"github_reviewed": true,
"github_reviewed_at": "2026-03-12T14:42:34Z",
"cwe_ids": [
"CWE-359"
],
"nvd_published_at": "2026-03-11T06:17:15Z",
"severity": "LOW"
}