{"action":"Upgrade flatpak to 1.18.4-1 or later.","affected":[{"fixed":"1.18.4-1","introduced":"0"}],"component":"flatpak","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.18.4-1"],"id":"tcs_01M5NX2CWHSZPP2Z9SN6EVC929","modified_at":"2026-10-01T08:47:32.065055723Z","published_at":"2026-09-28T21:17:19.907Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-97026","https://security-tracker.debian.org/tracker/CVE-2026-97026"],"severity":{"label":"low","score":3.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-97026#Debian:14/flatpak","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-97026"}],"summary":"Flatpak creates temporary child repository directories under the user cache with world-writable permissions (0777). On multi-user systems with a permissive umask, other local users could read or modif"}