{"id":"JLSEC-2026-159","details":"libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a crafted HEVC bitstream causes an out-of-bounds heap write confirmed by AddressSanitizer. The trigger is a stale ctb_info.log2unitSize after an SPS change where PicWidthInCtbsY and PicHeightInCtbsY stay constant but Log2CtbSizeY changes, causing set_SliceHeaderIndex to index past the allocated image metadata array and write 2 bytes past the end of a heap allocation. This issue has been patched in version 1.0.17.","modified":"2026-04-20T19:45:05.485607Z","published":"2026-04-20T19:31:50.289Z","upstream":["CVE-2026-33165","EUVD-2026-13812"],"database_specific":{"sources":[{"url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-33165","database_specific":{"status":"Analyzed"},"imported":"2026-04-20T18:42:57.974Z","published":"2026-03-20T21:17:16.453Z","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33165","modified":"2026-03-23T20:09:04.893Z","id":"CVE-2026-33165"},{"url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-13812","imported":"2026-04-20T18:42:59.328Z","published":"2026-03-20T20:32:36Z","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-13812","modified":"2026-03-24T18:48:34Z","id":"EUVD-2026-13812"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/strukturag/libde265/commit/c7891e412106130b83f8e8ea8b7f907e9449b658"},{"type":"WEB","url":"https://github.com/strukturag/libde265/releases/tag/v1.0.17"},{"type":"WEB","url":"https://github.com/strukturag/libde265/security/advisories/GHSA-653q-9f73-8hvg"}],"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":"1.0.18000+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-159.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:N/I:N/A:H"}]}