{"id":"JLSEC-2026-887","details":"A flaw was found in ImageMagick in versions 7.0.11, where an integer overflow in WriteTHUMBNAILImage of `coders/thumbnail.c` may trigger undefined behavior via a crafted image file that is submitted by an attacker and processed by an application using ImageMagick. The highest threat from this vulnerability is to system availability.","modified":"2026-07-30T18:23:56.814445688Z","published":"2026-07-30T16:02:27.435Z","upstream":["CVE-2021-20312"],"database_specific":{"license":"CC-BY-4.0","sources":[{"database_specific":{"status":"Modified"},"id":"CVE-2021-20312","imported":"2026-07-30T14:08:42.986Z","modified":"2026-06-17T03:33:39.200Z","published":"2021-05-11T23:15:08.850Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-20312","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20312"}]},"references":[{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1946742"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1946742"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00000.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00000.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/05/msg00020.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/05/msg00020.html"}],"affected":[{"package":{"name":"ImageMagick_jll","ecosystem":"Julia","purl":"pkg:julia/ImageMagick_jll?uuid=c73af94c-d91f-53ed-93a7-00f77d67a9d7"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"7.1.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-887.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V2","score":"AV:N/AC:L/Au:N/C:N/I:N/A:C"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}