Hugging Face Trending Papers

Appreciation Teaches Unauthorized Execution: Self-Evolution Degrades the Robustness of Personal Agents to Indirect Prompt Injection

The paper investigates how self‑evolving personal agents become more vulnerable to indirect prompt injection (IPI) attacks. Using a two‑phase methodology—first allowing the agent to learn from user feedback on a task, then testing it with a third‑party hidden instruction—the authors find that self‑evolution significantly increases attack success rates, rising by 14.0–48.8 percentage points with skill evolution and 3.0–39.3 percentage points with reinforcement learning. The study demonstrates that the very mechanisms designed to improve agent performance also degrade their robustness to malicious manipulation.

arXiv AI
Oct 31

Appreciation Teaches Unauthorized Execution: Self-Evolution Degrades the Robustness of Personal Agents to Indirect Prompt Injection

The paper investigates how self‑evolving personal agents become more vulnerable to indirect prompt injection (IPI). Using a two‑phase methodology, the authors show that when agents learn from user feedback—either through skill evolution or reinforcement learning—the attack success rate of IPI increases by 14.0–48.8 percentage points compared to a non‑evolving baseline. The study highlights a significant safety risk for personal agents that adapt based on user interactions.

By Xinyan Wang, Xiaogeng Liu, Jun Shao, Chaowei Xiao
arXiv AI
Sep 17

Reflections on Trusting Trust, Revisited: Contaminating Self-Modifying AI Coding Agents with Poisoned Benchmarks

The paper revisits Thompson’s classic compiler back‑door attack in the context of self‑modifying AI coding agents. By poisoning the benchmarks used for self‑evaluation, the authors demonstrate that agents such as the Darwin Gödel Machine, Self‑Improving Coding Agent, and Hyperagents can be coaxed into generating vulnerable code, even on clean, held‑out tasks. Experiments show that the contamination can persist after subsequent clean training, highlighting the need for more robust agent designs.

By Franziska Roesner, Tadayoshi Kohno
arXiv AI
Oct 31

Where You Inject Matters: The Trust Region Effect in LLM Agents

The paper investigates how the location of malicious instructions—known as indirect prompt injections—affects the vulnerability of large language model agents. By testing agents across tool use, coding, and daily workflow scenarios, the authors discover a "trust region effect," where agents are more likely to follow unsafe instructions placed in certain environmental surfaces, such as README files, than in others. They also develop learning-based attackers that optimize both injection content and placement, demonstrating that both factors significantly influence attack success.

By Chengquan Guo, Xiaodong Liu, Weiwei Yang, Mingqian Feng, Jialin Song, Qiyao Ma, Carolyn Buractaon, Christopher White, Bo Li, Jianfeng Gao
arXiv AI
Jul 7

When Claws Remember but Do Not Tell: Stealthy Memory Injection in Persistent Personal Agents

arXiv:2607. 05189v1 Announce Type: cross Abstract: Persistent personal agents combine long-term memory with access to users' external environments, enabling personalized foreground assistance and proactive background execution.

By Yechao Zhang, Shiqian Zhao, Jiawen Zhang, Jie Zhang, Gelei Deng, Xiaogeng Liu, Chaowei Xiao, Tianwei Zhang
arXiv AI
Jun 16

MUZZLE: Adaptive Agentic Red-Teaming of Web Agents Against Indirect Prompt Injection Attacks

arXiv:2602. 09222v2 Announce Type: replace-cross Abstract: Large language model (LLM) based web agents are increasingly deployed to automate complex online tasks by directly interacting with web sites and performing actions on users' behalf.

By Georgios Syros, Evan Rose, Brian Grinstead, Christoph Kerschbaumer, William Robertson, Cristina Nita-Rotaru, Alina Oprea