CVE-2026-3911

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

11/03/2026

Last modified:

11/03/2026

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 2.70 LOW
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): None

Base Score 3.x

2.70

Severity 3.x

LOW

References to Advisories, Solutions, and Tools

https://access.redhat.com/security/cve/CVE-2026-3911
https://bugzilla.redhat.com/show_bug.cgi?id=2446392