roomi-fields notebooklm-mcp up to 2.0.2 Batch To Vault vault_dir/slug_prefix path traversal

Summaryinfo

A vulnerability was found in roomi-fields notebooklm-mcp up to 2.0.2 and classified as critical. Affected is an unknown function of the component Batch To Vault. Executing a manipulation of the argument vault_dir/slug_prefix can lead to path traversal. This vulnerability is handled as CVE-2026-61647. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in roomi-fields notebooklm-mcp up to 2.0.2. This vulnerability affects an unknown code of the component Batch To Vault. The manipulation of the argument vault_dir/slug_prefix with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

NotebookLM MCP is an MCP server and HTTP service for interacting with Google NotebookLM and exporting generated content to local vault directories. Versions 1.6.0 through 2.0.2 contain a path traversal vulnerability in the `POST /batch-to-vault` endpoint, also exposed through the `batch_to_vault` MCP tool beginning in version 1.7.0, because attacker-controlled `vault_dir` and `slug_prefix` values can cause Markdown and JSON files to be written outside the intended vault directory to any location writable by the server process. Version 2.0.3 sanitizes `slug_prefix` and supports vault containment when `NOTEBOOKLM_VAULT_ROOT` is configured; containment is not enabled if that variable is unset. Users unable to upgrade should run the server as a dedicated unprivileged account restricted to the intended vault, keep the HTTP endpoint limited to localhost, and validate `vault_dir` values supplied by LLMs processing untrusted content.

The advisory is available at github.com. This vulnerability was named CVE-2026-61647 since 07/10/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 2.0.3 eliminates this vulnerability.

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Productinfo

Type

• Artificial Intelligence Software

Vendor

• roomi-fields

Name

• notebooklm-mcp

Version

• 2.0.0
• 2.0.1
• 2.0.2

Website

• Product: https://github.com/roomi-fields/notebooklm-mcp/

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