Out-of-bounds Read in Blender Foundation
CVE-2026-119722
Blender before 4.5.15 and 5.x before 5.2.3 contains a heap out-of-bounds access vulnerability in read_struct() that skips size validation when a .blend file's SDNA struct layout compares equal. Attackers can supply a crafted .blend file with short blocks so field reads, writes, and pointer dereferences overrun heap memory, causing crashes or code execution.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- projects.blender.org/blender/blender/pulls/164279 (patch)
- projects.blender.org/blender/blender/commit/c5d6faf04bf3f17efb6c404896ef0e74277… (patch)
- projects.blender.org/blender/blender/commit/7de4986e74ed47f67e78eb4b76609bb6d1a… (patch)
- projects.blender.org/blender/blender (product)
- www.vulncheck.com/advisories/blender-before-4.5.15-and-5-x-before-5.2.3-heap-ou… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-119722?
- CVE-2026-119722 is a high-severity vulnerability in Blender Foundation, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2026-10-30.
- How severe is CVE-2026-119722?
- High severity. CVSS v3 base score is 7.8 out of 10.