Medium, CVSS 6.0PyPIAmendedPublished
BlenderMCP path traversal in download_polyhaven_asset allows arbitrary file writes
CVE-2026-66004 · GHSA-4h8q-hh2j-755w
- Affected
- PyPI blender-mcp < 1.6.5
- Fixed in
- 1.6.5· Vendor fix available
- Issue
- BlenderMCP before commit 30a3308 contains a path traversal vulnerability in the downloadpolyhavenasset 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.
Recommended action: Upgrade to 1.6.5 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.