{"id":"JLSEC-2026-957","summary":"ImageMagick Has Signed Integer Overflow in SIXEL Decoder, Leading to Memory Corruption","details":"A signed integer overflow vulnerability in ImageMagick's SIXEL decoder allows an attacker to trigger memory corruption and denial of service when processing a maliciously crafted SIXEL image file. The vulnerability occurs during buffer reallocation operations where pointer arithmetic using signed 32-bit integers overflows.\n\n```\nAddressSanitizer:DEADLYSIGNAL\n=================================================================\n==143838==ERROR: AddressSanitizer: UNKNOWN SIGNAL on unknown address 0x000000000000\n    #0 0x7f379d5adb53  (/lib/x86_64-linux-gnu/libc.so.6+0xc4b53)\n```","modified":"2026-07-30T18:35:30.300004582Z","published":"2026-07-30T16:02:27.435Z","upstream":["CVE-2026-25970","EUVD-2026-7429","GHSA-xg29-8ghv-v4xr"],"database_specific":{"sources":[{"imported":"2026-07-30T14:08:45.324Z","modified":"2026-06-17T10:25:30.943Z","published":"2026-02-24T02:16:01.963Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-25970","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25970","database_specific":{"status":"Analyzed"},"id":"CVE-2026-25970"},{"published":"2026-03-12T14:01:54Z","url":"https://api.github.com/advisories/GHSA-xg29-8ghv-v4xr","html_url":"https://github.com/advisories/GHSA-xg29-8ghv-v4xr","id":"GHSA-xg29-8ghv-v4xr","imported":"2026-07-30T14:10:30.392Z","modified":"2026-03-12T14:01:55Z"},{"id":"EUVD-2026-7429","imported":"2026-07-30T14:08:52.963Z","modified":"2026-06-23T15:49:01Z","published":"2026-02-24T01:35:36Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-7429","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-7429"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-xg29-8ghv-v4xr"},{"type":"WEB","url":"https://github.com/advisories/GHSA-xg29-8ghv-v4xr"},{"type":"WEB","url":"https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25970"}],"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":"7.1.2023+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-957.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"credits":[{"name":"ylwango613","contact":["https://github.com/ylwango613"],"type":"REPORTER"}]}