geekgod382 filesystem-mcp-server read_file_tool/write_file_tool server.py is_path_allowed path traversal
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
A security vulnerability has been detected in geekgod382 filesystem-mcp-server 1.0.0. This issue affects the function is_path_allowed of the file server.py of the component read_file_tool/write_file_tool. Such manipulation leads to path traversal. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 1.1.0 is capable of addressing this issue. The name of the patch is 45364545fc60dc80aadcd4379f08042d3d3d292e. Upgrading the affected component is advised.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| geekgod382 | filesystem-mcp-server | 1.0.0 | 1.1.0 | Patch available | CNA |
- filesystem-mcp-server Vendorgeekgod382 Affected 1.0.0 Fixed in 1.1.0 Patch available CNA
Remediation
- Fix · CNA filesystem-mcp-server (geekgod382) Fixed in 1.1.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-7400
- 2026-10-03 Alias added: GHSA-wgg9-6667-c9w2
References
Patch 2
Sources
- CVE-2026-7400 · CVE Program
- CVE-2026-7400 · NVD
- FIRST EPSS
- GHSA-wgg9-6667-c9w2 · 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