{"id":"JLSEC-2026-790","summary":"A malicious h.265 bitstream can cause integer overflow and out of bounds writes in libde265","details":"libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bitstream with large SPS dimensions and 16-bit bit depth causes a signed integer overflow in `de265_image_get_buffer()` (`libde265/image.cc:128`). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent `fill_image()` call computes the real size using `size_t`, writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches the issue.","modified":"2026-07-25T03:30:03.612065063Z","published":"2026-07-25T03:23:36.599Z","upstream":["CVE-2026-49346","EUVD-2026-38080"],"database_specific":{"sources":[{"database_specific":{"status":"Analyzed"},"id":"CVE-2026-49346","imported":"2026-07-24T13:48:05.456Z","modified":"2026-06-26T19:17:38.463Z","published":"2026-06-19T21:17:01.847Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-49346","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49346"},{"published":"2026-06-19T20:12:14Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-38080","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-38080","id":"EUVD-2026-38080","imported":"2026-07-24T13:48:06.733Z","modified":"2026-06-22T14:05:14Z"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/strukturag/libde265/commit/8a1b5cf212f78e1c77cb46eb5d56e492a9336eb8"},{"type":"WEB","url":"https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86"}],"affected":[{"package":{"name":"libde265_jll","ecosystem":"Julia","purl":"pkg:julia/libde265_jll?uuid=0a7f2b4d-d03c-5694-960e-196e69ee64e2"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.1.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-790.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:L/A:H"}]}