Path Traversal in Ahujasid Blender-Mcp

CVE-2026-66004

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.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.003 (21.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-66004?
CVE-2026-66004 is a medium-severity vulnerability in Ahujasid Blender-Mcp, classified under Path Traversal. CVSS score: 5.3/10. Published 2026-07-24.
How severe is CVE-2026-66004?
Medium severity. CVSS v3 base score is 5.3 out of 10.