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2.3

Zitadel can let attackers probe internal network

CVE-2026-105214 · published 14 days ago
Summary

Versions of Zitadel older than 4.16.2 let a malicious user trick the system into contacting internal addresses when it checks an organization’s domain. This can be used to discover or scan services inside your private network. Upgrade to version 4.16.2 or later to stop the misuse.

What to do
  • Update zitadel zitadel to version 4.16.2 or later.
Affected software
VendorProductAffected versions
zitadel zitadel < 4.16.2
Original advisory text
Zitadel before 4.16.2 SSRF via Organization Domain HTTP Verification
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.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
2.3 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-918Server-Side Request Forgery (SSRF)
Timeline
Published4 Oct 2026
Updated14 Oct 2026
First seen4 Oct 2026
Sources
CVE-2026-105214 · NVD
CVE-2026-105214 · OSV
GHSA-93hm-8q29-c8cr · GHSA
CVE-2026-105214 · MITRE
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