CVE-2025-46814

FastAPI Guard is a security library for FastAPI that provides middleware to control IPs, log requests, and detect penetration attempts. An HTTP header injection vulnerability has been identified in versions prior to 2.0.0. By manipulating the X-Forwarded-For header, an attacker can potentially inject arbitrary IP addresses into the request. This vulnerability can allow attackers to bypass IP-based access controls, mislead logging systems, and impersonate trusted clients. It is especially impactful when the application relies on the X-Forwarded-For header for IP-based authorization or authentication. Users should upgrade to FastAPI Guard version 2.0.0 to receive a fix.
CVSS

No CVSS.

Configurations

No configuration.

History

06 May 2025, 15:16

Type Values Removed Values Added
New CVE

Information

Published : 2025-05-06 15:16

Updated : 2025-05-06 15:16


NVD link : CVE-2025-46814

Mitre link : CVE-2025-46814


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Products Affected

No product.

CWE
CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')