CVE-2025-67494

ZITADEL Vulnerable to Unauthenticated Full-Read SSRF via V2 Login

State: Published
Severity: 9.3 Critical
Published: Dec 9, 2025
Updated: Dec 10, 2025
Reserved: Dec 8, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	9.3 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N	GitHub_M

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
zitadelzitadel	< 1.80.0-v2.20.0.20251208091519-4c879b47334eAffected >= 1.83.4, <= 1.87.5Affected >= 4.0.0-rc.1, < 4.7.1Affected

References

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