CVE-2026-66004Medium· 5.3▾ SunlitBlenderMCP path traversal in download_polyhaven_asset allows arbitrary file writes
▾ Sunlit zone — Low / medium · no exploitation signal
impact 29.2 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 2.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
0.4%
Last analysed / modified upstream
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.
blender-mcp < 1.6.5Upgrade to a patched release:
blender-mcp 1.6.5Connected by shared product, vendor, weakness, or advisory.
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