Medium

mkdocs-mcp-plugin has a Path Traversal issue

  • Disclosed: 28.04.2026
  • Updated: 11.10.2026 14:17

A vulnerability was found in douinc mkdocs-mcp-plugin up to 0.4.1. This affects the function read_document/list_documents of the file server.py. Performing a manipulation of the argument docs_dir/file_path results in path traversal. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The vendor confirms, that the "fix will be published within a few days."

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) mkdocs-mcp-plugin <= 0.4.1 no fix

References

CVSS score 7.3/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness (CWE)
CWE-22
Platform
Python (PyPI)
Package
mkdocs-mcp-plugin
Disclosed
28.04.2026
Updated
11.10.2026 14:17

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-2653 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-wfr3-hf93-qgg3 - CC BY 4.0

Vulnerability history: mkdocs-mcp-plugin

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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