CVE-2026-119719: Blender · Integer Overflow or Wraparound
Affects BlenderSource CVE Database V5
Not known to be exploited · CVSS 8.5 High : upgrade to 5.2.3 or 4.5.15 soon.
Data as of 30 Oct 2026, 15:48 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 8.5 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 7.8 |
- Patch
- Available – fixed in 5.2.3, 4.5.15
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade Blender to 5.2.3 or 4.5.15.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Blender FoundationBlender | Affected
| Fixed in
|
| Blender FoundationBlender | Affected
| Fixed in
|
AI-suggested
Fixed versions 4.5.15 and 5.2.3 are available and should be applied to remediate this vulnerability. Users and administrators should upgrade Blender to at least version 4.5.15 or 5.2.3 depending on their major version branch. No additional mitigation is indicated by the vendor advisory.
Description
Blender versions before 4.5.15 and 5.x before 5.2.3 have a heap buffer overflow vulnerability in the blend file thumbnail extractor. This is caused by a 32-bit integer overflow in the thumb_data_vertical_flip() function. Maliciously crafted .blend files with specially designed TEST block dimensions can trigger out-of-bounds writes when previewed by blender-thumbnailer or the Windows shell extension, potentially leading to crashes or code execution.
References
- projects.blender.org/blender/blender/pulls/164279 (opens in a new tab)
- projects.blender.org/blender/blender/commit/d723c68112d216099c9b24dab5c8440bab7add08 (opens in a new tab)
- projects.blender.org/blender/blender/commit/71c10a0217d5e331b215b76773ad23b64974bd97 (opens in a new tab)
- projects.blender.org/blender/blender (opens in a new tab)
- vulncheck.com/advisories/blender-before-4.5.15-and-5-x-before-5.2.3-heap-buffer-overflow-via-thumbnail-extraction (opens in a new tab)