Bug 2446392 (CVE-2026-3911) - CVE-2026-3911 org.keycloak.services.resources.admin.UserResource: Keycloak: Information disclosure of disabled user attributes via administrative endpoint
Summary: CVE-2026-3911 org.keycloak.services.resources.admin.UserResource: Keycloak: I...
Keywords:
Status: NEW
Alias: CVE-2026-3911
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-11 03:33 UTC by OSIDB Bzimport
Modified: 2026-03-11 03:46 UTC (History)
8 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-03-11 03:33:06 UTC 
The GET endpoint /admin/realms/{realm}/users/{UUID}/unmanagedAttributes returns user attributes configured with visibility set to "Disabled" (neither User nor Admin can view) to any authenticated user holding the view-users role. This violates the documented behavior stating disabled unmanaged attributes are "not available from any context."
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