Node.js: Permissions policies can be bypassed via process.mainModule

A privilege escalation vulnerability exists in Node.js 19.6.1, 18.14.1, 16.19.1 and 14.21.3 that made it possible to bypass the experimental Permissions https://nodejs.org/api/permissions.html feature in Node.js and access non authorized modules by using process.mainModule.require. This only...