Vulnerability · Published Apr 29, 2026 · Assigned by VulDB

CVE-2026-7400geekgod382 filesystem-mcp-server read_file_tool/write_file_tool server.py is_path_allowed path traversal

High 7.3

In plain English

A high-severity path traversal in filesystem-mcp-server from geekgod382. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.4%top 62.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
geekgod382	filesystem-mcp-server	1.0.0

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

References

VDB-360123 | geekgod382 filesystem-mcp-server read_file_tool/write_file_tool server.py is_path_allowed path traversal vdb-entry, technical-description
VDB-360123 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #803495 | geekgod382 filesystem-mcp-server 4e3e83852b1395de0a437bd4fd66376422f4ea0c Path Traversal third-party-advisory
https://github.com/geekgod382/filesystem-mcp-server/issues/1 exploit, issue-tracking
https://github.com/geekgod382/filesystem-mcp-server/commit/45364545fc60dc80aadcd4379f08042d3d3d292e patch
https://github.com/geekgod382/filesystem-mcp-server/releases/tag/v1.1.0 patch
https://github.com/geekgod382/filesystem-mcp-server/ product