puchunjie doc-tools-mcp 1.0.18 MCP Interface src/mcp-server.ts create_document/open_document filePath path traversal

Summaryinfo

A vulnerability was found in puchunjie doc-tools-mcp 1.0.18. It has been rated as critical. This vulnerability affects the function create_document/open_document of the file src/mcp-server.ts of the component MCP Interface. This manipulation of the argument filePath causes path traversal. This vulnerability appears as CVE-2026-7738. The attack may be initiated remotely. In addition, an exploit is available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability has been found in puchunjie doc-tools-mcp 1.0.18 and classified as critical. Affected by this vulnerability is the function create_document/open_document of the file src/mcp-server.ts of the component MCP Interface. The manipulation of the argument filePath 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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-7738. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Artificial Intelligence Software

Vendor

• puchunjie

Name

• doc-tools-mcp

Version

• 1.0.18

Website

• Product: https://github.com/puchunjie/doc-tools-mcp/

CPE 2.3info

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CPE 2.2info

• 🔒

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Accepted

• Submit #807642: puchunjie @puchunjie/doc-tools-mcp 1.0.18, Commit c96df45a16710a3eec41a7a94c32b81468db28ea Path Traversal (by BruceJqs)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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