CVE-2026-5327— efforthye fast-filesystem-mcp index.ts handleGetDiskUsage command injection
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I. Basic Information for CVE-2026-5327
Vulnerability Information
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Vulnerability Title
efforthye fast-filesystem-mcp index.ts handleGetDiskUsage command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security flaw has been discovered in efforthye fast-filesystem-mcp up to 3.5.1. The affected element is the function handleGetDiskUsage of the file src/index.ts. Performing a manipulation results in command injection. The attack is possible to be carried out 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
fast-filesystem-mcp 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
fast-filesystem-mcp是efforthye个人开发者的一个模型上下文协议服务器。 fast-filesystem-mcp 3.5.1及之前版本存在命令注入漏洞，该漏洞源于文件src/index.ts中函数handleGetDiskUsage存在命令注入，可能导致远程攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| efforthye | fast-filesystem-mcp | 3.5.0 | cpe:2.3:a:efforthye:fast-filesystem-mcp:*:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-5327
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- Submit #780776: efforthye fast-filesystem-mcp <= 3.5.1 Command Injectionthird-party-advisory
- CVE-2026-5327 efforthye fast-filesystem-mcp index.ts handleGetDiskUsage command injection (Issue 15)vdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2026-5327
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V. Comments for CVE-2026-5327
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