---
id: CVE-2026-112208
title: >-
  Keycloak-services: keycloak-services: account takeover via stale sso_auth note
  in organization identity-first login
summary: >-
  A flaw was found in the Organization identity-first login flow of the Keycloak
  authentication server. Keycloak is an open-source identity and access
  management solution used to secure modern applications and services. The issue
  occurs wh…
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'
cvssSource: cna
cwe:
  - CWE-305
vendor: Red Hat
product: keycloak-services
affected:
  - keycloak-services
  - rhbk/keycloak-rhel9
  - keycloak-services
published: '2026-11-05'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T10:24:21.514Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112208'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:95761'
    label: 'RHSA-2026:95761'
  - url: 'https://access.redhat.com/security/cve/CVE-2026-112208'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2555473'
    label: RHBZ#2555473
tags:
  - cve.org
ingestedAt: '2026-11-05T22:38:31.327Z'
---

## Overview

A flaw was found in the Organization identity-first login flow of the Keycloak authentication server. Keycloak is an open-source identity and access management solution used to secure modern applications and services. The issue occurs when an attacker who belongs to multiple organizations initiates a login and then switches to a registration or password reset path. During this process, a flag indicating a successful login is not properly cleared when the user is removed from the session. An attacker can then provide a victim's username, and the system incorrectly treats the stale flag as proof of the victim's identity. This allows the attacker to bypass authentication and gain full access to the victim's account and connected applications.

## Affected

- `keycloak-services`
- `rhbk/keycloak-rhel9`
- `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.