CVE-2025-54994CWE-78

@akoskm/create-mcp-server-stdio has Command Injection in MCP Server due to unsafe `exec` API

Critical · published September 8, 2025

CVSS v4.0
9.3
EPSS
1%
Percentile
71.0
In the wild
Unconfirmed
What it is

@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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.01337 · 71.0th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2025-09-08T19:37Z
EPSS history
Timeline
  • 08 SEP 19:37Z
    @akoskm/create-mcp-server-stdio has Command Injection in MCP Server due to unsafe `exec` API
    cvelistv5