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VulnerabilityPublished

CVE-2026-119721: Blender · Out-of-bounds Read

Affects BlenderSource CVE Database V5

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Not known to be exploited · CVSS 6.9 Medium : upgrade to 5.2.3 or 4.5.15 when convenient.

Data as of 30 Oct 2026, 16:18 UTC

CVSS 4.0 base score
6.9Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.06.9
CNA (VulnCheck)CVSS 3.16.1
Patch
Available – fixed in 5.2.3, 4.5.15
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
Blender FoundationBlenderAffected
  • >=5.0.0 <5.2.3
Fixed in
  • 5.2.3
Blender FoundationBlenderAffected
  • <4.5.15
Fixed in
  • 4.5.15

AI-suggested

Users should update Blender to version 4.5.15 or later, or 5.2.3 or later, where this vulnerability is fixed. Applying these official fixes fully mitigates the risk. No additional vendor advisories indicate alternative mitigations or that no action is required.

Description

CVE-2026-119721 is an out-of-bounds read vulnerability in Blender versions before 4.5.15 and 5.x before 5.2.3. The flaw exists in the blo_bhead_id_* accessors in readfile.cc, which read ID fields without verifying block length. A crafted .blend file with short ID blocks can trigger heap over-reads when browsed or appended, potentially causing crashes or disclosure of heap memory.

References

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