{"id":"JLSEC-2026-1095","details":"libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file (uncompressed `unci` codec, tiled, component-interleaved, 4:2:0) triggers a heap out-of-bounds write in libheif's uncompressed tile decoder. The write overwrites the C++ vtable pointer of an adjacent `unc_decoder_component_interleave` object; the next virtual call dispatches to an attacker-chosen address. Version 1.22.0 patches the issue.","modified":"2026-08-03T13:30:04.070659887Z","published":"2026-08-03T13:28:07.759Z","upstream":["CVE-2026-47178","EUVD-2026-46638"],"database_specific":{"license":"CC-BY-4.0","sources":[{"html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47178","database_specific":{"status":"Analyzed"},"id":"CVE-2026-47178","imported":"2026-08-03T06:12:12.916Z","modified":"2026-07-27T15:22:40.207Z","published":"2026-07-21T22:17:12.503Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-47178"},{"modified":"2026-07-22T15:30:57Z","published":"2026-07-21T21:09:10Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-46638","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-46638","id":"EUVD-2026-46638","imported":"2026-08-03T06:12:13.008Z"}]},"references":[{"type":"WEB","url":"https://github.com/strukturag/libheif/security/advisories/GHSA-5x55-x5pf-9c6g"}],"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-2026-1095.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:H/I:H/A:H"}]}