Flatpak 1.16.4 patches a critical flaw that gave apps full host access
… Here are the full patch notes: Fix a complete sandbox escape which leads to host file access and code execution in the host context CVE-2026-34078 Prevent arbitrary file deletion on the host filesystem CVE-2026-34079 Prevent arbitrary read-access to files in the system-helper context GHSA-2fxp-43j9… …