{"action":"Upgrade libheif to 1.23.2-1 or later.","affected":[{"fixed":"1.23.2-1","introduced":"0"}],"component":"libheif","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.23.2-1"],"id":"tcs_01M5NVYJ10KZXWX6Z2FSTNZBFY","modified_at":"2026-09-28T10:00:07.211482923Z","published_at":"2026-09-18T16:17:12.840Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-84448","https://security-tracker.debian.org/tracker/CVE-2026-84448"],"severity":{"label":"medium","score":4},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-84448#Debian:14/libheif","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-84448"}],"summary":"libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.23.2, the public heif_region_item_add_region_inline_mask_data() function in libheif/api/libheif/heif_regions.cc accepts mask_data"}