---
id: CVE-2026-97175
title: >-
  Keycloak-services: keycloak-services: unverified idp email auto-linking
  enables account takeover
summary: >-
  A flaw was found in the idp-auto-link authenticator of the keycloak-services
  component, which handles user identity federation. The issue occurs when
  Keycloak automatically links an incoming identity from an external provider to
  an exist…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-287
vendor: Red Hat
product: keycloak-services
affected:
  - keycloak-services (all versions)
  - rhbk/keycloak-rhel9 (all versions)
  - keycloak-services
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T17:16:04.146Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-97175'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-97175'
tags:
  - cve.org
ingestedAt: '2026-11-05T22:38:31.433Z'
---

## Overview

A flaw was found in the idp-auto-link authenticator of the keycloak-services component, which handles user identity federation. The issue occurs when Keycloak automatically links an incoming identity from an external provider to an existing local account based on an email address without verifying if the provider has validated that email. This can allow an attacker to take over a victim's account by using a matching unverified email address at a brokered provider.

## Affected

- `keycloak-services (all versions)`
- `rhbk/keycloak-rhel9 (all versions)`
- `keycloak-services`

## Remediation

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

### Workarounds

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.