Vulnerability Description
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 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://projects.blender.org/blender/blender
- https://projects.blender.org/blender/blender/commit/71c10a0217d5e331b215b76773ad
- https://projects.blender.org/blender/blender/commit/d723c68112d216099c9b24dab5c8
- https://projects.blender.org/blender/blender/pulls/164279
- https://www.vulncheck.com/advisories/blender-before-4.5.15-and-5-x-before-5.2.3-
FAQ
What is CVE-2026-119719?
CVE-2026-119719 is a vulnerability with a CVSS score of 7.8 (HIGH). 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(). Attacker...
How severe is CVE-2026-119719?
CVE-2026-119719 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-119719?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.