{"action":"Upgrade libheif to 1.23.1-1 or later.","affected":[{"fixed":"1.23.1-1","introduced":"0"}],"component":"libheif","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.23.1-1"],"id":"tcs_01M5NSG1E05Q2YHY3H0M2ZT4V8","modified_at":"2026-10-25T10:00:25.566404946Z","published_at":"2026-07-21T22:17:12.957Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-47254","https://security-tracker.debian.org/tracker/CVE-2026-47254"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-47254#Debian:14/libheif","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-47254"}],"summary":"libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.0, `Track::init_sample_timing_table()` in `libheif/sequences/track.cc` stores an out-of-bounds chunk index (`m_chunks."}