CVE-2026-105214GHSA-93hm-8q29-c8cr
Zitadel before 4.16.2 SSRF via Organization Domain HTTP Verification
zitadel zitadel
CVSS
2.3LowExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.21%Chance of exploitation activity in the next 30 days, higher than 11% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 4.16.2zitadelCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
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.
Text from CVE List
Affected versions 2
- zitadelaffected: all versions before 4.16.2CVE List
- zitadelunaffected: 4.16.2CVE List