CVE-2025-14778

Published: Feb 9, 2026

Modified: Feb 10, 2026

PUBLISHED

CVSS v3.1

5.4

MEDIUM

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.

Vendor	Product	Versions
Red Hat	Red Hat build of Keycloak 26.2	unaffected `26.2.13-1 - < *`
Red Hat	Red Hat build of Keycloak 26.2	unaffected `26.2-15 - < *`
Red Hat	Red Hat build of Keycloak 26.2	unaffected `26.2-15 - < *`
Red Hat	Red Hat build of Keycloak 26.2.13	All versions
Red Hat	Red Hat build of Keycloak 26.4	unaffected `26.4.9-1 - < *`
Red Hat	Red Hat build of Keycloak 26.4	unaffected `26.4-11 - < *`
Red Hat	Red Hat build of Keycloak 26.4	unaffected `26.4-10 - < *`
Red Hat	Red Hat build of Keycloak 26.4.9	All versions