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Author

Chongyu Fan

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#artificial intelligence Book Open access Oct 2026

Log-To-Leak: Prompt Injection Attacks on Tool-Using LLM Agents via the Model Context Protocol

Results show that successful task completion can coexist with unauthorized post-hoc disclosure and motivate host-controlled authorization for secondary tool calls and motivate host-controlled authorization for secondary tool calls.

Yue-Peng Hu, Chong-Yu Fan, Sirat Samyoun et al. · 8 citations · ⚡2
Jul 2026

UP: Unbounded Positive Asymmetric Optimization for Breaking the Exploration-Stability Dilemma

Extensive experiments demonstrate that UP enhances exploration capacity and achieves superior reasoning accuracy across diverse RL algorithms (DAPO, GSPO, and GRPO), model architectures, and training modalities, validating UP as a truly universal plug-and-play enhancement for RL-based training.

Chongyu Fan, Pengfei Liu, Jingjia Huang et al. · 0 citations

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