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Security Audit of 670 MCP Servers Finds 78% Have Significant Vulnerabilities

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A security scan of 670 Model Context Protocol (MCP) servers revealed that 78% have significant security issues, with an average score of just 53 out of 100. Only 9 servers were deemed production-safe, while 85 were found to have no authentication in place. The audit evaluated servers across four security checks, with popular tools like a Postmark server boasting 1,500 weekly downloads among those flagged. A small number of servers, including github-mcp-server, scored well, reaching as high as 85. Developers can assess their own MCP servers using the scanning tool available at utir.dev, with the project's source code published on GitHub.

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Security Audit of 670 MCP Servers Finds 78% Have Significant Vulnerabilities · ShortSingh