Faraday affected by SSRF via protocol-relative URL host override in build_exclusive_url

Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Prior to 2.14.1, Faraday's build_exclusive_url method (in lib/faraday/connection.rb) uses Ruby's URI#merge to combine the connection's base URL with a user-supplied path. Per RFC 3986, protocol-relative URLs (e.g. //evil.com/path) are treated as network-path references that override the base URL's host/authority component. This means that if any application passes user-controlled input to Faraday's get(), post(), build_url(), or other request methods, an attacker can supply a protocol-relative URL like //attacker.com/endpoint to redirect the request to an arbitrary host, enabling Server-Side Request Forgery (SSRF). This vulnerability is fixed in 2.14.1.

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

服务端请求伪造(SSRF)

faraday 代码问题漏洞

faraday是lostisland开源的一个HTTP客户端库。 Faraday 2.14.1之前版本存在代码问题漏洞，该漏洞源于使用Ruby的URI#merge方法处理用户输入，可能导致服务端请求伪造攻击。

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