---
id: CVE-2026-105214
title: >-
  Zitadel before 4.16.2 contains a server-side request forgery vulnerability
  that allows attackers to make the server request internal resources through
  organization domain HTTP verification
summary: >-
  Zitadel before 4.16.2 contains a server-side request forgery vulnerability
  that allows attackers to make the server request internal resources through
  organization domain HTTP verification. The challenge fetch uses Go's default
  http.Get …
severity: low
cvss: 2.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-918
vendor: zitadel
product: zitadel
affected:
  - zitadel < 4.16.2
published: '2026-10-04'
updated: '2026-10-04'
sourceUpdated: '2026-10-04T15:16:32.950'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105214'
references:
  - url: 'https://github.com/zitadel/zitadel/security/advisories/GHSA-93hm-8q29-c8cr'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/zitadel-before-4.16.2-ssrf-via-organization-domain-http-verification
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-04T15:00:34.387Z'
---

## Overview

Zitadel before 4.16.2 contains a server-side request forgery vulnerability that allows attackers to make the server request internal resources through organization domain HTTP verification. The challenge fetch uses Go's default http.Get instead of the protected client, so attackers can register domains that redirect to loopback, internal, or cloud metadata addresses to scan ports and map internal networks.

## Remediation

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