Vulnerability · Published May 4, 2026 · Assigned by VulDB

CVE-2026-7738puchunjie doc-tools-mcp MCP mcp-server.ts open_document path traversal

Medium 6.3

In plain English

A medium-severity path traversal in doc-tools-mcp from puchunjie. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.3%top 72.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	@puchunjie/doc-tools-mcp	no fix listed	GHSA-gcmm-c94j-j47x

Affected products (as reported)

Vendor	Product	Versions
puchunjie	doc-tools-mcp	1.0.18

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References

VDB-360913 | puchunjie doc-tools-mcp MCP mcp-server.ts open_document path traversal vdb-entry, technical-description
VDB-360913 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #807642 | puchunjie @puchunjie/doc-tools-mcp 1.0.18, Commit c96df45a16710a3eec41a7a94c32b81468db28ea Path Traversal third-party-advisory
https://github.com/puchunjie/doc-tools-mcp/issues/4 issue-tracking
https://github.com/BruceJqs/public_exp/issues/38 exploit, issue-tracking
https://github.com/puchunjie/doc-tools-mcp/ product