---
id: CVE-2026-94215
title: >-
  A flaw was found in the Admin REST API of Keycloak, an open-source identity
  and access management solution
summary: >-
  A flaw was found in the Admin REST API of Keycloak, an open-source identity
  and access management solution. The issue occurs because the API uses a
  per-request in-memory cache to resolve clients by their unique identifier
  without verifyi…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:L'
cwe:
  - CWE-862
vendor: Red Hat
product: keycloak/rhbk-openshift-rhel9
affected:
  - keycloak/rhbk-openshift-rhel9 (all versions)
  - keycloak-services (all versions)
  - rhbk/keycloak-rhel9 (all versions)
  - keycloak-services
published: '2026-09-21'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T19:37:36.747'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94215'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-94215'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2537312'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-94215.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-94215'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94215'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00302
epssPercentile: 0.20573
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-21T19:40:19.326236Z'
ingestedAt: '2026-09-21T06:32:37.147Z'
---

## Overview

A flaw was found in the Admin REST API of Keycloak, an open-source identity and access management solution. The issue occurs because the API uses a per-request in-memory cache to resolve clients by their unique identifier without verifying if the client belongs to the realm specified in the request path. This allows an administrator with limited privileges to read or modify sensitive client configurations in the master realm by accessing them through a realm they control. Successful exploitation could lead to the exposure of client credentials or the redirection of administrative login attempts to malicious sites.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Build of Keycloak · no fix planned: Red Hat Build of Keycloak · updated 2026-09-22 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-94215.json)