Yuepeng Hu's Homepage

Publications

* denotes equal contribution · my name in bold.

Fingerprinting LLMs via Prompt Injection ORAL

Yuepeng Hu, Zhengyuan Jiang, Mengyuan Li, Osama Ahmed, Zhicong Huang, Cheng Hong, Neil Gong

ACL (Annual Meeting of the Association for Computational Linguistics), 2026

Proposes a prompt injection technique to uniquely fingerprint and track large language models.

A Transfer Attack to Image Watermarks

Yuepeng Hu, Zhengyuan Jiang, Moyang Guo, Neil Gong

ICLR (International Conference on Learning Representations), 2025

Demonstrates cross-model transferability of attacks against image watermarks, highlighting fundamental robustness issues.

WebInject: Prompt Injection Attack to Web Agents

Xilong Wang, John Bloch, Zedian Shao, Yuepeng Hu, Shuyan Zhou, Neil Gong

EMNLP (Empirical Methods in Natural Language Processing), 2025

Exposes prompt injection vulnerabilities in web-browsing agents navigating untrusted environments.

Certifiably Robust Image Watermark

Zhengyuan Jiang, Moyang Guo, Yuepeng Hu, Neil Gong

ECCV (European Conference on Computer Vision), 2024

Develops a theoretical framework and practical approach for applying provably robust watermarks to images.

Preprints

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

Yuepeng Hu*, Chongyu Fan*, Sirat Samyoun, Jian Du

Highlights security risks in the Model Context Protocol where tool logs can be exploited for prompt injection and data leakage.