---
id: CVE-2025-14777
title: A flaw was found in Keycloak
summary: >-
  A flaw was found in Keycloak. An IDOR (Broken Access Control) vulnerability
  exists in the admin API endpoints for authorization resource management,
  specifically in ResourceSetService and PermissionTicketService. The system
  checks author…
severity: medium
cvss: 6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L'
cwe:
  - CWE-289
published: '2025-12-16'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T19:10:00.160'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-14777'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:6477'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:6478'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2025-14777'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2422596'
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.00345
epssPercentile: 0.25835
ingestedAt: '2026-10-07T20:46:46.948Z'
---

## Overview

A flaw was found in Keycloak. An IDOR (Broken Access Control) vulnerability exists in the admin API endpoints for authorization resource management, specifically in ResourceSetService and PermissionTicketService. The system checks authorization against the resourceServer (client) ID provided in the API request, but the backend database lookup and modification operations (findById, delete) only use the resourceId. This mismatch allows an authenticated attacker with fine-grained admin permissions for one client (e.g., Client A) to delete or update resources belonging to another client (Client B) within the same realm by supplying a valid resource ID.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.