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CVE-2026-119722

Blender before 4.5.15 and 5.x before 5.2.3 Heap Out-of-Bounds Access via read_struct()

HIGH
7.8
CVSS Score
Published: October 30, 2026 at 03:16 PM UTC
Updated: October 30, 2026 at 07:14 PM UTC
1 product affected across 1 vendorBlender

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (5)

Patch
Source: cverecord
https://projects.blender.org/blender/blender/pulls/164279
Patch
Source: cverecord
https://projects.blender.org/blender/blender/commit/c5d6faf04bf3f17efb6c404896ef0e7427784da5
Patch
Source: cverecord
https://projects.blender.org/blender/blender/commit/7de4986e74ed47f67e78eb4b76609bb6d1ae8a0e
Product
Source: cverecord
https://projects.blender.org/blender/blender
Third Party Advisory
Source: cverecord
https://www.vulncheck.com/advisories/blender-before-4.5.15-and-5-x-before-5.2.3-heap-out-of-bounds-access-via-read-struct

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHVulnCheck
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-125

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