{"id":"JLSEC-2026-573","details":"libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a malformed HEIF sequence file can trigger an out-of-bounds read in core sequence parsing logic, causing DoS. A malformed file can have stco.entry_count == 0 (creating no chunks) while still passing validation because saio.entry_count == 0 matches, but with saiz.sample_count \u003e 0 the SampleAuxInfoReader constructor still enters its loop. This leads to an out-of-bounds dereference on the empty chunks[0] in chunked mode.","modified":"2026-06-05T15:30:16.725878951Z","published":"2026-06-05T15:18:28.412Z","upstream":["CVE-2026-41069","EUVD-2026-31503"],"database_specific":{"sources":[{"url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-41069","id":"CVE-2026-41069","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41069","modified":"2026-05-27T15:26:28.040Z","database_specific":{"status":"Analyzed"},"imported":"2026-06-05T14:52:24.560Z","published":"2026-05-22T21:16:43.327Z"},{"url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-31503","id":"EUVD-2026-31503","modified":"2026-05-26T12:16:13Z","published":"2026-05-22T20:49:16Z","imported":"2026-06-05T14:52:25.868Z","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-31503"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/strukturag/libheif/releases/tag/v1.22.0"},{"type":"WEB","url":"https://github.com/strukturag/libheif/security/advisories/GHSA-p82x-fpmv-576r"}],"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-2026-573.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}