CVE-2026-66004

BlenderMCP Path Traversal via download_polyhaven_asset API

Published Jul 24, 2026 CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-4h8q-hh2j-755w BlenderMCP path traversal in download_polyhaven_asset allows arbitrary file writes
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ahujasid
Ahujasid blender-mcp
Vendors & Products Ahujasid
Ahujasid blender-mcp
Type Values Removed Values Added
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.
Title BlenderMCP Path Traversal via download_polyhaven_asset API
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jul 27, 2026, 4:19 PM
Reserved
Jul 23, 2026, 7:22 PM
Status
Deferred
Published
Jul 24, 2026, 3:19 PM
Modified
Oct 24, 2026, 1:10 PM