MCP Server Security and AI Agent Attack Surface: How Model Context Protocol expands lateral movement risks for AI-powered tools — June 1, 2026

Published 01 Jun 2026 · ai, mcp, model context protocol, ai agents, lateral movement

AGMP Partners The Current State of MCP Server Security and AI Agent Attack Surface in Late 2025 As we barrel towards mid-2026, the convergence of sophisticated AI agents and the Model Context Protocol (MCP) has undeniably reshaped the cybersecurity landscape. What started as an elegant solution for contextualizing and federating model access across distributed AI systems has rapidly evolved into a formidable lateral movement vector for threat actors. Prior to MCP's widespread adoption, AI inference engines and model repositories were often isolated, or at best, had tightly controlled API access. Your GPT-5 instance might talk to a vector database, but the interaction scope was usually narrow. The game changed when organizations realized the immense value in allowing agents to dynamically pull context – not just data, but entire ontological representations, behavioral patterns, and even s