PT-2025-36503 · Akoskm · Create-Mcp-Server-Stdio

Lirantal · Published 2025-09-08 · Updated 2025-09-08 · CVE-2025-54994

Mitre

CVSS v4.0

9.3

9.3

Critical

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

@akoskm/create-mcp-server-stdio is an MCP server starter kit that uses the StdioServerTransport. Prior to version 0.0.13, the MCP Server is written in a way that is vulnerable to command injection vulnerability attacks as part of some of its MCP Server tool definition and implementation. The MCP Server exposes the tool `which-app-on-port` which relies on Node.js child process API `exec` which is an unsafe and vulnerable API if concatenated with untrusted user input. Version 0.0.13 contains a fix for the issue.

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2025-54994

Affected Products

Create-Mcp-Server-Stdio

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2025-54994 · Security Note
• https://github.com/akoskm/create-mcp-server-stdio/security/advisories/GHSA-3ch2-jxxc-v4xf · Note
• https://github.com/akoskm/create-mcp-server-stdio/blob/main/src/index.ts#L24-L40 · Note
• https://github.com/akoskm/create-mcp-server-stdio/commit/48c26bbe1f8c62764e4592f33c8300d1cadd2eac · Note