Description

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.

INFO

Published Date :

2025-05-06T14:55:48.766Z

Last Modified :

2025-05-06T19:51:34.278Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-46814 vulnerability.

Vendors Products
Fastapi-guard
  • Fastapi Guard
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-46814.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
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Privileges Required
User Interaction
Scope
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Availability Impact