The MCP inspector is a developer tool for testing and debugging MCP servers. Versions of MCP Inspector below 0.14.1 are vulnerable to remote code execution due to lack of authentication between the Inspector client and proxy, allowing unauthenticated requests to launch MCP commands over stdio. Users should immediately upgrade to version 0.14.1 or later to address these vulnerabilities.

According to the self-reported version number, the version of MCP Inspector hosted on the remote is affected by a Remote Code Execution vulnerability.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

This detection is included in the AI and LLM category.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - The MCP inspector is a developer tool for testing and debugging MCP servers. Versions of MCP Inspector
    below 0.14.1 are vulnerable to remote code execution due to lack of authentication between the Inspector
    client and proxy, allowing unauthenticated requests to launch MCP commands over stdio. Users should
    immediately upgrade to version 0.14.1 or later to address these vulnerabilities. (CVE-2025-49596)

ID	Name	Product	Family	Severity
114906	MCP Inspector < 0.14.1 Remote Code Execution	Web App Scanning	Artificial Intelligence	critical
427869	SCA: security update for @modelcontextprotocol/inspector (GHSA-7f8r-222p-6f5g)	Tenable Cloud Security	SCA Checks	critical
427869	SCA: security update for @modelcontextprotocol/inspector (GHSA-7f8r-222p-6f5g)	Tenable Self-Hosted Container Security	SCA Checks	critical

Detections

Analytics

CVE-2025-49596

critical

Tenable Plugins

critical

critical

critical