Keycloak: incorrect ownership checks in /uma-policy/_CVE-2025-14778

5.4 / 10

MEDIUM

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

Description

A flaw was found in Keycloak. A significant Broken Access Control vulnerability exists in the UserManagedPermissionService (UMA Protection API). When updating or deleting a UMA policy associated with multiple resources, the authorization check only verifies the caller's ownership against the first resource in the policy's list. This allows a user (Owner A) who owns one resource (RA) to update a shared policy and modify authorization rules for other resources (e.g., RB) in that same policy, even if those other resources are owned by a different user (Owner B). This constitutes a horizontal privilege escalation.

Basic Information

ID CVE-2025-14778

Source redhat

Published Feb 9, 2026 at 18:58

Modified Feb 9, 2026 at 20:42

Affected Product

Vendor Red Hat

Product Red Hat build of Keycloak 26.2

Version 26.2-15

CWE Classification

CWE-266

References

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    "published": "2026-02-09T18:58:29.065Z",
    "modified": "2026-02-09T20:42:23.515Z",
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