PT-2026-35977 · Unknown · Filesystem Mcp Server

Largew · Published 2026-04-29 · Updated 2026-04-29 · CVE-2026-7400

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions geekgod382 filesystem-mcp-server version 1.0.0

Description A path traversal issue exists in the is path allowed() function within the server.py file of the read file tool/write file tool component. This flaw allows a remote attacker to manipulate paths, potentially leading to data leaks and Server-Side Request Forgery (SSRF), which is a technique where an attacker forces a server to make requests to an unintended location.

Recommendations Update to version 1.1.0. As a temporary workaround, restrict access to the is path allowed() function to minimize the risk of exploitation.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-7400

Affected Products

Filesystem Mcp Server

References · 10

• 🔥 https://github.com/geekgod382/filesystem-mcp-server/issues/1 · Exploit
• https://github.com/geekgod382/filesystem-mcp-server/commit/45364545fc60dc80aadcd4379f08042d3d3d292e · Patch
• https://github.com/geekgod382/filesystem-mcp-server/releases/tag/v1.1.0 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-7400 · Security Note
• https://twitter.com/CVEnew/status/2049578367444476094 · Twitter Post
• https://vuldb.com/vuln/360123/cti · Note
• https://vuldb.com/vuln/360123 · Note
• https://github.com/geekgod382/filesystem-mcp-server · Note
• https://vuldb.com/submit/803495 · Note
• https://twitter.com/lyrie_ai/status/2049584690550464767 · Twitter Post