Vulnerability Description
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.
Related Weaknesses (CWE)
References
- https://github.com/modelcontextprotocol/inspector/commit/50df0e1ec488f3983740b4d
- https://github.com/modelcontextprotocol/inspector/security/advisories/GHSA-7f8r-
- https://thenewstack.io/mcp-vulnerability-exposes-the-ai-untrusted-code-crisis
- https://www.oligo.security/blog/critical-rce-vulnerability-in-anthropic-mcp-insp
FAQ
What is CVE-2025-49596?
CVE-2025-49596 is a documented vulnerability. 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 In...
How severe is CVE-2025-49596?
CVSS scoring is not yet available for CVE-2025-49596. Check NVD for updates.
Is there a patch for CVE-2025-49596?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.