When AI Agents Become Attack Surfaces: The Claude Desktop Extensions Remote Code Execution Vulnerability and Autonomous Tool Chaining Without Trust Boundaries

Analysis of a maximum-severity remote code execution vulnerability (no CVE assigned as of February 10, 2026) in Claude Desktop Extensions discovered through LLM-driven tool chaining research, demonstrating architectural failure in AI agent trust boundaries Table of Contents Problem Framing: The Autonomous Tool Chaining Trust Boundary Failure Defining System Boundaries and Architectural Invariants Separating Threat Models … Read more