{"id":"CVE-2026-104066","title":"Scribus before 1.6.7 and 1.7.x before 1.7.4 Heap Buffer Overflow via PICT 4-bit Pixel Unpacking","summary":"Scribus before 1.6.7 and 1.7.x before 1.7.4 contains a heap buffer overflow vulnerability in the Mac PICT image loader and import plugin when unpacking 4-bit indexed pixel data. Attackers can supply a crafted PICT file with inconsistent …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-787"],"vendor":"Scribus","product":"Scribus","affected":["Scribus < 1.6.7","Scribus >= 1.7.0 < 1.7.4"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-30T18:25:47.985640Z"},"published":"2026-10-30","updated":"2026-11-02","sourceUpdated":"2026-11-02T20:37:50.733Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-104066","references":[{"url":"https://github.com/scribusproject/scribus/commit/d667b3b1d38e1808721315dc976d67b72070f6b4","label":"Patch Commit (1.6.x)"},{"url":"https://github.com/scribusproject/scribus/commit/544a179241362eb254cb69a5cc68ef24388b265f","label":"Patch Commit (1.7.x)"},{"url":"https://github.com/scribusproject/scribus"},{"url":"https://wiki.scribus.net/canvas/1.6.7_Release"},{"url":"https://www.vulncheck.com/advisories/scribus-before-1.6.7-heap-buffer-overflow-via-pict-4-bit-pixel-unpacking","label":"VulnCheck Advisory: Scribus before 1.6.7 Heap Buffer Overflow via PICT 4-bit Pixel Unpacking"}],"tags":["cve.org"],"epss":0.00212,"epssPercentile":0.11581,"ingestedAt":"2026-11-05T19:30:42.842Z","slug":"CVE-2026-104066","body":"## Overview\n\nScribus before 1.6.7 and 1.7.x before 1.7.4 contains a heap buffer overflow vulnerability in the Mac PICT image loader and import plugin when unpacking 4-bit indexed pixel data. Attackers can supply a crafted PICT file with inconsistent width and row data that, when placed or imported, writes out of bounds, causing crashes or code execution.\n\n## Affected\n\n- `Scribus < 1.6.7`\n- `Scribus >= 1.7.0 < 1.7.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}