CVE-2022-35949

undici is an HTTP/1.1 client, written from scratch for Node.js.undici is
vulnerable to SSRF (Server-side Request Forgery) when an application takes
in user input into the path/pathname option of undici.request. If a
user specifies a URL such as http://127.0.0.1 or //127.0.0.1 js const undici = require("undici") undici.request({origin: "http://example.com", pathname: "//127.0.0.1"}) Instead of processing
the request as http://example.org//127.0.0.1 (or
http://example.org/http://127.0.0.1 when http://127.0.0.1 is used), it
actually processes the request as http://127.0.0.1/ and sends it to
http://127.0.0.1. If a developer passes in user input into path
parameter of undici.request, it can result in an SSRF as they will
assume that the hostname cannot change, when in actual fact it can change
because the specified path parameter is combined with the base URL. This
issue was fixed in [email protected]. The best workaround is to validate user
input before passing it to the undici.request call.