CVE-2026-119719 Blender before 4.5.15 and 5.x before 5.2.3 Heap Buffer Overflow via Thumbnail Extraction
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-119719?
CVE-2026-119719 is a high-severity vulnerability in Blender, published on 30 Oct 2026.
Official 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.
Weakness: CWE-190
Which versions are affected by CVE-2026-119719?
It affects 1 product.
Products include Blender.
How do I fix CVE-2026-119719?
No fix has been published for CVE-2026-119719 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-119719 being exploited?
There is no known exploitation of CVE-2026-119719 in the wild and no public exploit code.
Other vulnerabilities in Blender
- CVE-2009-3850 Blender 2.34, 2.35a, 2.40, and 2.49b allows remote attackers to execute arbitrary code via a .blend file that contains Python statements in
- CVE-2007-1253 Eval injection vulnerability in the (a) kmz_ImportWithMesh.py Script for Blender 0.1.9h, as used in (b) Blender before 2.43, allows user-ass
- CVE-2017-12081 An exploitable integer overflow exists in the upgrade of a legacy Mesh attribute of the Blender open-source 3d creation suite v2.78c.
- CVE-2017-12082 An exploitable integer overflow exists in the 'CustomData' Mesh loading functionality of the Blender open-source 3d creation suite.
- CVE-2017-12086 An exploitable integer overflow exists in the 'BKE_mesh_calc_normals_tessface' functionality of the Blender open-source 3d creation suite.
Sources
Also known as DEBIAN-CVE-2026-119719, GHSA-27m9-m9xq-2vm6, UBUNTU-CVE-2026-119719.