{"action":"Upgrade flatpak to 1.16.4-1 or later.","affected":[{"fixed":"1.16.4-1","introduced":"0"}],"component":"flatpak","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.16.4-1"],"id":"tcs_01M5NRRW4FNQ73E41GT87762NP","modified_at":"2026-10-01T03:03:10.593614169Z","published_at":"2026-04-07T22:16:21.930Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-34078","https://security-tracker.debian.org/tracker/CVE-2026-34078"],"severity":{"label":"critical","score":10},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-34078#Debian:14/flatpak","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-34078"}],"summary":"Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the Flatpak portal accepts paths in the sandbox-expose options which can be app-controlled symlinks pointing at a"}