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CVE-2025-54994

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Date: September 8, 2025

@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.

Severity Score

Related Resources (7)

https://github.com/akoskm/create-mcp-server-stdio
https://github.com/akoskm/create-mcp-server-stdio/commit/48c26bbe1f8c62764e4592f33c8300d1cadd2eac
https://github.com/akoskm/create-mcp-server-stdio/pull/1
https://github.com/akoskm/create-mcp-server-stdio/security/advisories/GHSA-3ch2-jxxc-v4xf
https://github.com/akoskm/create-mcp-server-stdio/blob/main/src/index.ts#L24-L40
https://nvd.nist.gov/vuln/detail/CVE-2025-54994
https://www.mend.io/vulnerability-database/CVE-2025-54994

Severity Score

Weakness Type (CWE)

Improper Neutralization of Special Elements used in a Command ('Command Injection')

CWE-77

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CWE-78

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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