aurelia-path is part of the Aurelia platform and contains utilities for path manipulation. There is a prototype pollution vulnerability in aurelia-path before version 1.1.7. The vulnerability exposes Aurelia application that uses "aurelia-path" package to parse a string. The majority of this will be Aurelia applications that employ the "aurelia-router" package. An example is this could allow an attacker to change the prototype of base object class "Object" by tricking an application to parse the following URL: "https://aurelia.io/blog/?__proto__[asdf]=asdf". The problem is patched in version "1.1.7".