{"id":"CVE-2026-119719","title":"Blender before 4.5.15 and 5.x before 5.2.3 Heap Buffer Overflow via Thumbnail Extraction","summary":"Blender before 4.5.15 and 5.x before 5.2.3 contains a heap buffer overflow vulnerability in the blend file thumbnail extractor caused by 32-bit integer overflow in thumb_data_vertical_flip(). Attackers can craft a .blend file with malici…","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-190"],"vendor":"Blender Foundation","product":"Blender","affected":["Blender < 4.5.15","Blender >= 5.0.0 < 5.2.3"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-11-04T22:55:50.193042Z"},"published":"2026-10-30","updated":"2026-11-04","sourceUpdated":"2026-11-04T22:56:02.873Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119719","references":[{"url":"https://projects.blender.org/blender/blender/pulls/164279"},{"url":"https://projects.blender.org/blender/blender/commit/d723c68112d216099c9b24dab5c8440bab7add08"},{"url":"https://projects.blender.org/blender/blender/commit/71c10a0217d5e331b215b76773ad23b64974bd97"},{"url":"https://projects.blender.org/blender/blender"},{"url":"https://www.vulncheck.com/advisories/blender-before-4.5.15-and-5-x-before-5.2.3-heap-buffer-overflow-via-thumbnail-extraction","label":"VulnCheck Advisory: Blender before 4.5.15 and 5.x before 5.2.3 Heap Buffer Overflow via Thumbnail Extraction"}],"tags":["cve.org"],"epss":0.00156,"epssPercentile":0.048,"ingestedAt":"2026-11-05T21:36:00.666Z","slug":"CVE-2026-119719","body":"## Overview\n\nBlender before 4.5.15 and 5.x before 5.2.3 contains a heap buffer overflow vulnerability in the blend file thumbnail extractor caused by 32-bit integer overflow in thumb_data_vertical_flip(). Attackers can craft a .blend file with malicious TEST block dimensions that trigger an out-of-bounds write when blender-thumbnailer or the Windows shell extension previews it, causing crashes or code execution.\n\n## Affected\n\n- `Blender < 4.5.15`\n- `Blender >= 5.0.0 < 5.2.3`\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":[]}