Zitadel up to 4.7.0 HTTP Request server-side request forgery

Summaryinfo

A vulnerability was found in Zitadel up to 4.7.0. It has been rated as critical. Affected by this issue is some unknown functionality of the component HTTP Request Handler. This manipulation causes server-side request forgery. This vulnerability is registered as CVE-2025-67494. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Zitadel up to 4.7.0. It has been declared as critical. Affected by this vulnerability is an unknown function of the component HTTP Request Handler. The manipulation with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-67494 since 12/08/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

Upgrading to version 4.7.1 eliminates this vulnerability. Applying the patch 4c879b47334e01d4fcab921ac1b44eda39acdb96 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• Zitadel

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7.0

License

• open-source

Website

• Product: https://github.com/zitadel/zitadel/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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