puchunjie doc-tools-mcp MCP mcp-server.ts open_document path traversal
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| puchunjie | doc-tools-mcp | 1.0.18 | — | No fix listed | CNA |
| — | @puchunjie/doc-tools-mcp (npm) | up to 1.0.18 | — | No fix listed | GHSA-gcmm-c94j-j47x |
- doc-tools-mcp Vendorpuchunjie Affected 1.0.18 Fixed in — No fix listed CNA
- @puchunjie/doc-tools-mcp (npm) Vendor— Affected up to 1.0.18 Fixed in — No fix listed GHSA-gcmm-c94j-j47x
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-7738
- 2026-10-03 Alias added: GHSA-gcmm-c94j-j47x
References
Sources
- CVE-2026-7738 · CVE Program
- CVE-2026-7738 · NVD
- FIRST EPSS
- GHSA-gcmm-c94j-j47x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences