Artificial Intelligence #ai agents#large language models
New Attack FragFuse Exploits LLM Agent Memory to Bypass Access Controls
Researchers introduce FragFuse, a novel attack that bypasses access control in large language model agents by fragmenting prohibited queries across interactions and storing them in long-term memory, later reconstructing them without triggering defenses. The attack achieves an 86.3% average bypass success rate across multiple agent settings and exposes a critical vulnerability in memory-based AI systems.
Jun 16, 2026 4 sources