cups2root: Public PoC Exploit Escalates lpadmin to Root on CUPS Vulnerability Report cups2root: Public PoC Exploit Escalates lpadmin to Root on CUPS Do Son September 22, 2026 0 TL;DR A researcher published cups2root, a working proof-of-concept that escalates a local lpadmin user to root on... Read More Read more about cups2root: Public PoC Exploit Escalates lpadmin to Root on CUPS