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Yannis Belkhiter

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#artificial intelligence Apr 2026

Breaking MCP with Function Hijacking Attacks: Novel Threats for Function Calling and Agentic Models

A novel function hijacking attack (FHA) that manipulates the tool selection process of agentic models to force the invocation of an attacker-chosen function and is largely agnostic to the context semantics and remains effective across domains and function sets.

Yannis Belkhiter, Giulio Zizzo, Sergio Maffeis et al. · arXiv.org · 1 citation