Path Traversal in Puchunjie Doc-Tools-Mcp
CVE-2026-7738
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (34.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Puchunjie Doc-Tools-Mcp — versions 1.0.18
Weakness classification (CWE)
References
- github.com/BruceJqs/public_exp/issues/38 (issue-tracking, exploit)
- github.com/puchunjie/doc-tools-mcp/ (product)
- github.com/puchunjie/doc-tools-mcp/issues/4 (issue-tracking)
- vuldb.com/submit/807642 (third-party-advisory)
- vuldb.com/vuln/360913 (technical-description, vdb-entry)
- vuldb.com/vuln/360913/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-7738?
- CVE-2026-7738 is a medium-severity vulnerability in Puchunjie Doc-Tools-Mcp, classified under Path Traversal. CVSS score: 6.3/10. Published 2026-05-04.
- How severe is CVE-2026-7738?
- Medium severity. CVSS v3 base score is 6.3 out of 10.