CVE-2026-119721 Blender before 4.5.15 and 5.x before 5.2.3 Out-of-Bounds Read via blo_bhead_id Accessors
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-119721?
CVE-2026-119721 is a medium-severity vulnerability in Blender, published on 30 Oct 2026.
Official description
Blender before 4.5.15 and 5.x before 5.2.3 contains an out-of-bounds read vulnerability in blo_bhead_id_* accessors in readfile.cc that read ID fields without block length checks. Attackers can supply a crafted .blend file with short ID blocks that, when browsed or appended from, causes heap over-reads leading to crashes or heap memory disclosure.
Weakness: CWE-125
Which versions are affected by CVE-2026-119721?
It affects 1 product.
Products include Blender.
How do I fix CVE-2026-119721?
No fix has been published for CVE-2026-119721 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-119721 being exploited?
There is no known exploitation of CVE-2026-119721 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-2026-119721, GHSA-8hxf-4775-5j3p, UBUNTU-CVE-2026-119721.