Friday, 16 October 2026
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Path traversal in @roomi-fields/notebooklm-mcp vault.batch tool

The vault_batch MCP tool in @roomi-fields/notebooklm-mcp versions 1.6.0 through 2.0.2 accepts unsanitized vault_dir and slug_prefix parameters, allowing arbitrary file writes outside the intended vault directory. This could be exploited via prompt injection to plant files in sensitive locations.

Disclosed 22 September 2026 · Record updated 1 October 2026

Impact

File write to any location writable by the server process, potentially allowing downstream exploitation through planted files in autostart folders or shell startup files.

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Sources

  1. github.comhttps://github.com/advisories/GHSA-jjhp-8crj-mppq