CVE-2026-7738: @puchunjie/doc-tools-mcp has a Path Traversal Issue

May 4, 2026 (updated May 8, 2026)

A security flaw has been discovered in puchunjie doc-tools-mcp 1.0.18. This affects the function create_document/open_document of the file src/mcp-server.ts of the component MCP Interface. The manipulation of the argument filePath results in path traversal. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

References

github.com/BruceJqs/public_exp/issues/38
github.com/advisories/GHSA-gcmm-c94j-j47x
github.com/puchunjie/doc-tools-mcp
github.com/puchunjie/doc-tools-mcp/issues/4
nvd.nist.gov/vuln/detail/CVE-2026-7738
vuldb.com/submit/807642
vuldb.com/vuln/360913
vuldb.com/vuln/360913/cti

Code Behaviors & Features

Detect and mitigate CVE-2026-7738 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →