TI-2026-42555 CVE-2026-59678 · GHSA-7h94-344f-429fIncorrect authorization in Linux-Gaming PortProtonQtPriority LOW 30An Incorrect Authorization vulnerability in Linux-Gaming PortProtonQt allows any users to mount and unmount arbitrary file systems and modify the network configuration via NetworkManager.CVSS 4.0HIGH 7.1· Local · No auth · No interaction · EPSS 0.00158 · Published 2026-07-23 · Fixed CWE-863