CVE-2026-3911 LOW

CVE-2026-3911: Org.keycloak.services.resources.admin.userresource: keycloak: information disclosure of disabled user attributes via administrative endpoint

Vendor Red Hat
Product Red Hat build of Keycloak 26.4.11
Weakness CWE-359
Published March 11, 2026
Last update April 2, 2026
View on NVD All CVEs

CVSS base score

2.7/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 11, 2026 CVE published
April 2, 2026 Record updated