In the WebRTC component in DuckDuckGo 4.2.0, after visiting a web site that attempts to gather complete client information (such as https://ip.voidsec.com), the browser can disclose a private IP address in a STUN request.
- https://voidsec.com/vpn-leak/
- https://www.exploit-db.com/exploits/44403/
No PoCs found on GitHub currently.