{"id":"JLSEC-2026-1098","details":"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.size()`) into `m_presentation_timeline` when the number of chunks defined in the `stco` box is less than the number of samples in `stsz`. A subsequent call to `heif_track_get_next_raw_sequence_sample()` reads `m_chunks[chunk_idx]` with that OOB index, causing a heap-buffer-overflow. Version 1.22.0 fixes the issue.","modified":"2026-08-03T13:30:04.069055756Z","published":"2026-08-03T13:28:07.759Z","upstream":["CVE-2026-47254","EUVD-2026-46436"],"database_specific":{"sources":[{"published":"2026-07-21T22:17:12.957Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-47254","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47254","database_specific":{"status":"Analyzed"},"id":"CVE-2026-47254","imported":"2026-08-03T06:12:12.977Z","modified":"2026-07-27T15:16:14.643Z"},{"url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-46436","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-46436","id":"EUVD-2026-46436","imported":"2026-08-03T06:12:13.008Z","modified":"2026-07-22T18:24:43Z","published":"2026-07-21T21:21:41Z"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/strukturag/libheif/security/advisories/GHSA-wqjg-4x9g-6cvg"}],"affected":[{"package":{"name":"libheif_jll","ecosystem":"Julia","purl":"pkg:julia/libheif_jll?uuid=a13778fd-9a17-58b4-b5a0-4b4a242815a9"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.22.2000+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1098.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"}]}