Unrated severityNVD Advisory· Published Jul 24, 2026· Updated Jul 27, 2026
BlenderMCP Path Traversal via download_polyhaven_asset API
CVE-2026-66004
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.
Affected products
1- Range: <commit 30a3308
Patches
Vulnerability mechanics
References
4- github.com/ahujasid/blender-mcp/commit/30a3308446cd8f81a9446e5a2ed657c0d8d86072mitrepatch
- github.com/ahujasid/blender-mcp/pull/258mitreissue-trackingpatch
- github.com/ahujasid/blender-mcp/issues/257mitretechnical-descriptionexploitissue-tracking
- www.vulncheck.com/advisories/blendermcp-path-traversal-via-download-polyhaven-asset-apimitrethird-party-advisory
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