FastAPI Guard Remote Header Injection via X-Forwarded-For Manipulation

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:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

输出中的特殊元素转义处理不恰当(注入)

fastapi-guard 注入漏洞

fastapi-guard是Renzo F个人开发者的一个FastAPI的安全库，提供中间件来控制IP、记录请求和检测渗透尝试。 fastapi-guard 2.0.0之前版本存在注入漏洞，该漏洞源于HTTP标头注入漏洞，可能绕过基于IP的访问控制。

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