---
id: CVE-2026-105209
title: >-
  ZITADEL 3.x before 3.4.15 and 4.x before 4.17.1 contains an improper
  authorization vulnerability: when issuing passkey or passwordless enrollment
  codes, it checks only the organization in the x-zitadel-orgid header, not the
  target user's…
summary: >-
  ZITADEL 3.x before 3.4.15 and 4.x before 4.17.1 contains an improper
  authorization vulnerability: when issuing passkey or passwordless enrollment
  codes, it checks only the organization in the x-zitadel-orgid header, not the
  target user's…
severity: critical
cvss: 9.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N'
cwe:
  - CWE-862
vendor: zitadel
product: zitadel
affected:
  - zitadel < 4.17.1
  - zitadel < 3.4.15
published: '2026-10-04'
updated: '2026-10-04'
sourceUpdated: '2026-10-04T15:16:32.127'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105209'
references:
  - url: 'https://github.com/zitadel/zitadel/security/advisories/GHSA-pq2q-2c6r-75c4'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/zitadel-before-3.4.15-and-4.17.1-cross-organization-account-takeover-via-passkey-enrollment
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-04T15:00:34.391Z'
---

## Overview

ZITADEL 3.x before 3.4.15 and 4.x before 4.17.1 contains an improper authorization vulnerability: when issuing passkey or passwordless enrollment codes, it checks only the organization in the x-zitadel-orgid header, not the target user's organization. Attackers with user-write permission in one organization can obtain an enrollment code for a user in another organization on the same instance and register their own authenticator to take over that account.

## Remediation

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