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CVE-2025-67366

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Filesystem MCP是Sylphx开源的一个MCP文件系统服务器。 Filesystem MCP 0.5.8版本存在安全漏洞，该漏洞源于路径验证机制中符号链接处理不当，可能导致绕过目录限制，访问未授权文件。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.62% · P50
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I. Basic Information for CVE-2025-67366

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
@sylphxltd/filesystem-mcp v0.5.8 is an MCP server that provides file content reading functionality. Version 0.5.8 of filesystem-mcp contains a critical path traversal vulnerability in its "read_content" tool. This vulnerability arises from improper symlink handling in the path validation mechanism: the resolvePath function checks path validity before resolving symlinks, while fs.readFile resolves symlinks automatically during file access. This allows attackers to bypass directory restrictions by leveraging symlinks within the allowed directory that point to external files, enabling unauthorized access to files outside the intended operational scope.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Filesystem MCP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Filesystem MCP是Sylphx开源的一个MCP文件系统服务器。 Filesystem MCP 0.5.8版本存在安全漏洞，该漏洞源于路径验证机制中符号链接处理不当，可能导致绕过目录限制，访问未授权文件。
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
- n/a n/a -

II. Public POCs for CVE-2025-67366

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III. Intelligence Information for CVE-2025-67366

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Other References for CVE-2025-67366 (2)

Same Patch Batch · n/a · 2026-01-07 · 10 CVEs total

CVE-2026-0649 4.7 MEDIUM invoiceninja Migration Import Import.php copy server-side request forgery
CVE-2025-66837 Software ARIS 安全漏洞
CVE-2025-66786 OpenAirInterface CN5G AMF 安全漏洞
CVE-2025-66686 Perch CMS 安全漏洞
CVE-2025-66838 Software ARIS 安全漏洞
CVE-2025-67364 fast-filesystem-mcp 安全漏洞
CVE-2025-61492 Terminal Controller for MCP 安全漏洞
CVE-2025-61489 mcp-shell 安全漏洞
CVE-2025-65805 OpenAirInterface CN5G AMF 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a