---
id: CVE-2024-3656
title: A flaw was found in Keycloak
summary: >-
  A flaw was found in Keycloak. Certain endpoints in Keycloak's admin REST API
  allow low-privilege users to access administrative functionalities. This flaw
  allows users to perform actions reserved for administrators, potentially
  leading t…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-200
published: '2024-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T16:17:19.977'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-3656'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2024:3572'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:3575'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2024-3656'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2274403'
    label: secalert@redhat.com
  - url: 'https://github.com/advisories/GHSA-2cww-fgmg-4jqc'
    label: secalert@redhat.com
  - url: 'https://github.com/hnsecurity/vulns/blob/main/HNS-2024-08-Keycloak.md'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://news.ycombinator.com/item?id=42136000'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://security.humanativaspa.it/an-analysis-of-the-keycloak-authentication-system/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-3656.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2024-3656'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2024-3656'
tags:
  - nvd
  - exploit-available
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.03323
epssPercentile: 0.88532
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/h4x0r-dz/CVE-2024-3656'
  nuclei:
    - CVE-2024-3656
  checkedAt: '2026-10-27T16:42:19.357Z'
exploitAvailable: true
ingestedAt: '2026-10-09T17:04:42.780Z'
vendor: Red Hat
product: Red Hat Build of Keycloak
affected:
  - build_of_keycloak
  - single_sign_on 7
patched:
  - build_of_keycloak
  - single_sign_on 7
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2024-10-09T19:18:03.646470Z'
---

## Overview

A flaw was found in Keycloak. Certain endpoints in Keycloak's admin REST API allow low-privilege users to access administrative functionalities. This flaw allows users to perform actions reserved for administrators, potentially leading to data breaches or system compromise.

## Remediation

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

## Vendor advisories

- **RHSA-2024:3575** · Red Hat · fixed in: Red Hat Build of Keycloak · released 2024-06-03 · [advisory](https://access.redhat.com/errata/RHSA-2024:3575)
- **RHSA-2024:3572** · Red Hat · fixed in: Red Hat Single Sign-On 7 · released 2024-06-03 · [advisory](https://access.redhat.com/errata/RHSA-2024:3572)
- **Red Hat VEX** · Important · affected: Red Hat Build of Keycloak, Red Hat Single Sign-On 7 · no fix planned: Red Hat Build of Keycloak, Red Hat Single Sign-On 7 · updated 2026-10-09 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-3656.json)