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Blender Heap Buffer Overflow Vulnerabilities Disclosed

Blender Heap Buffer Overflow Vulnerabilities Disclosed

First seen 31 Oct 2026, 06:42 UTC • •
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ThreatCluster AI
ThreatCluster •October 31, 2026 at 08:42 UTC
  • •Blender versions before 4.5.15 and 5.x before 5.2.3 are affected.
  • •Vulnerabilities could allow arbitrary code execution via heap buffer overflow.
  • •Users should update to the latest versions to mitigate risks.

Two vulnerabilities have been identified in Blender versions prior to 4.5.15 and 5.x before 5.2.3, specifically a heap buffer overflow via thumbnail extraction and point cache. These vulnerabilities could allow attackers to execute arbitrary code. The affected versions include Blender 0, 5.0.0, and any versions below 5.2.3. No specific CVEs were mentioned in the articles, and the current status of exploitation is unclear. Users are advised to update to the latest versions to mitigate potential risks. The vulnerabilities are categorized under CWE-190, indicating an integer overflow or wraparound issue.

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Common questions

Which versions of Blender are affected?
Blender versions before 4.5.15 and 5.x before 5.2.3 are affected.
What types of vulnerabilities are present?
The vulnerabilities are heap buffer overflows that could allow arbitrary code execution.
What should users do to protect themselves?
Users should update to the latest versions of Blender to mitigate the vulnerabilities.