The Model Context Protocol Security Reality Check
The New Stack
JUNE 18, 2025
The Model Context Protocol (MCP) is quickly becoming a standard for AI agents and servers, defining how agents discover, authenticate to and invoke remote tools and services. But securing OAuth-based MCP servers is trickier than it looks. Recent updates to the MCP Security Best Practices specification, led by security experts including Den Delimarsky and Paul Carleton , have highlighted critical gaps in current deployments, particularly around confused deputy attacks and token-handling vulnerabi
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