by Kastro
Paper/Archive/CVE-2025-67494

CVE-2025-67494

zitadel zitadel — ZITADEL Vulnerable to Unauthenticated Full-Read SSRF via V2 Login

EPSS 0.4%CVSS 9.3
critical.is priorityof 100
36
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 38.6.386 × 207.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

ZITADEL is an open-source identity infrastructure tool. Versions 4.7.0 and below are vulnerable to an unauthenticated, full-read SSRF vulnerability. The ZITADEL Login UI (V2) treats the x-zitadel-forward-host header as a trusted fallback for all deployments, including self-hosted instances. This allows an unauthenticated attacker to force the server to make HTTP requests to arbitrary domains, such as internal addresses, and read the responses, enabling data exfiltration and bypassing network-segmentation controls. This issue is fixed in version 4.7.1.

Affected

ProductAffectedFixed inSource
zitadel< 1.80.0-v2.20.0.20251208091519-4c879b47334e–CNA
zitadel>= 1.83.4, <= 1.87.5–CNA
zitadel>= 4.0.0-rc.1, < 4.7.1–CNA

Scores by source

GitHub_M (CNA)9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refgithub.com/zitadel/zitadel/security/advisories/GHSA-7wfc-4796-gmg5refgithub.com/zitadel/zitadel/commit/4c879b47334e01d4fcab921ac1b44eda39acdb96