geekgod382 filesystem-mcp-server 1.0.0 read_file_tool/write_file_tool server.py is_path_allowed path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in geekgod382 filesystem-mcp-server 1.0.0. Impacted is the function is_path_allowed of the file server.py of the component read_file_tool/write_file_tool. Performing a manipulation results in path traversal. This vulnerability was named CVE-2026-7400. The attack may be initiated remotely. In addition, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in geekgod382 filesystem-mcp-server 1.0.0. It has been classified as critical. This affects the function is_path_allowed of the file server.py of the component read_file_tool/write_file_tool. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-7400. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The exploit is shared for download at github.com. It is declared as proof-of-concept.

Upgrading to version 1.1.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 45364545fc60dc80aadcd4379f08042d3d3d292e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-26281). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: filesystem-mcp-server 1.1.0
Patch: 45364545fc60dc80aadcd4379f08042d3d3d292e

Timelineinfo

04/29/2026 Advisory disclosed
04/29/2026 +0 days VulDB entry created
04/30/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-7400 (🔒)
GCVE (CVE): GCVE-0-2026-7400
GCVE (VulDB): GCVE-100-360123
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/29/2026 13:41
Updated: 04/30/2026 00:31
Changes: 04/29/2026 13:41 (62), 04/30/2026 00:31 (1)
Complete: 🔍
Submitter: LargeW
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #803495: geekgod382 filesystem-mcp-server 4e3e83852b1395de0a437bd4fd66376422f4ea0c Path Traversal (by LargeW)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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