CVE-2025-1391 - CVE House
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Status published Medium CVE-2025-1391

Keycloak-services: improper authorization in keycloak organization mapper allows unauthorized organization claims

Vulnerability Description

A flaw was found in the Keycloak organization feature, which allows the incorrect assignment of an organization to a user if their username or email matches the organization’s domain pattern. This issue occurs at the mapper level, leading to misrepresentation in tokens. If an application relies on these claims for authorization, it may incorrectly assume a user belongs to an organization they are not a member of, potentially granting unauthorized access or privileges.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

Red Hat Build of Keycloak, Red Hat build of Keycloak 26.0
Vulnerable Versions:
26.0.0, 26.0.10-3, 26.0-11, 26.0-12

Timeline

Official Publish: February 17th, 2025
Last Modified: May 6th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weaknesses (CWE)