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.

INFO

Published Date :

2026-02-09T18:58:29.065Z

Last Modified :

2026-02-10T01:04:37.407Z

Source :

redhat
AFFECTED PRODUCTS

The following products are affected by CVE-2025-14778 vulnerability.

Vendors Products
Redhat
  • Build Keycloak
  • Build Of Keycloak

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact