Vulnerability Description
BlenderMCP before commit 30a3308 contains a path traversal vulnerability in the download_polyhaven_asset method that allows attackers to write arbitrary files by injecting traversal sequences in API response include keys. Attackers performing MITM attacks or prompt injection can supply malicious paths like '../../.bashrc' to overwrite sensitive files and achieve persistent code execution.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/ahujasid/blender-mcp/commit/30a3308446cd8f81a9446e5a2ed657c0d
- https://github.com/ahujasid/blender-mcp/issues/257
- https://github.com/ahujasid/blender-mcp/pull/258
- https://www.vulncheck.com/advisories/blendermcp-path-traversal-via-download-poly
FAQ
What is CVE-2026-66004?
CVE-2026-66004 is a vulnerability with a CVSS score of 5.3 (MEDIUM). BlenderMCP before commit 30a3308 contains a path traversal vulnerability in the download_polyhaven_asset method that allows attackers to write arbitrary files by injecting traversal sequences in API r...
How severe is CVE-2026-66004?
CVE-2026-66004 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-66004?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.