CVE-2026-66004CWE-22

BlenderMCP Path Traversal via download_polyhaven_asset API

Medium · published July 24, 2026

CVSS v4.0
6.0
EPSS
0%
Percentile
21.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.0 · MEDIUM
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
EPSS
0.00296 · 21.2th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-07-24T14:44Z
EPSS history
Timeline
  • 24 JUL 14:44Z
    BlenderMCP Path Traversal via download_polyhaven_asset API
    cvelistv5