---
id: CVE-2026-9705
aliases:
  - GHSA-r7rc-c989-86g6
title: >-
  Keycloak: Attacker can re-enable and take over disabled clients via
  registration access token
summary: >-
  Keycloak: Attacker can re-enable and take over disabled clients via
  registration access token
severity: medium
cvss: 6.5
cwe:
  - CWE-613
vendor: keycloak
product: 'org.keycloak:keycloak-services'
ecosystem: maven
affected:
  - 'org.keycloak:keycloak-services < 26.6.4'
patched:
  - 'org.keycloak:keycloak-services 26.6.4'
published: '2026-10-29'
updated: '2026-10-29'
sourceUpdated: '2026-10-29T16:36:23Z'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-r7rc-c989-86g6'
references:
  - url: >-
      https://github.com/keycloak/keycloak/security/advisories/GHSA-r7rc-c989-86g6
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-9705'
  - url: 'https://access.redhat.com/errata/RHSA-2026:30049'
  - url: 'https://access.redhat.com/errata/RHSA-2026:30050'
  - url: 'https://access.redhat.com/errata/RHSA-2026:30083'
  - url: 'https://access.redhat.com/errata/RHSA-2026:30084'
  - url: 'https://access.redhat.com/security/cve/CVE-2026-9705'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2481878'
  - url: 'https://github.com/advisories/GHSA-r7rc-c989-86g6'
tags:
  - ghsa
  - maven
epss: 0.00464
epssPercentile: 0.40183
ingestedAt: '2026-10-29T16:38:25.969Z'
---

## Overview

### Description
A flaw was found in Keycloak's client registration service. A remote attacker, possessing a previously issued Registration Access Token (RAT), could exploit this vulnerability to re-enable a client that an administrator had explicitly disabled. This bypasses security controls, allowing the attacker to reset the client's secret and potentially regain privileged API access. The primary impact includes unauthorized information disclosure and potential integrity compromise.

## Affected packages

- `org.keycloak:keycloak-services < 26.6.4`

## Remediation

Upgrade to a patched release:

- `org.keycloak:keycloak-services 26.6.4`