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Related papers: State Contamination in Memory-Augmented LLM Agents

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Large Language Models (LLMs) are increasingly used in agentic systems, where their interactions with diverse tools and environments create complex, multi-stage safety challenges. However, existing benchmarks mostly rely on static,…

Cryptography and Security · Computer Science 2026-02-03 Liming Lu , Xiang Gu , Junyu Huang , Jiawei Du , Xu Zheng , Yunhuai Liu , Yongbin Zhou , Shuchao Pang

Retrieval-augmented generation (RAG) systems are vulnerable to attacks that inject poisoned passages into the retrieved context, even at low corruption rates. We show that existing attacks are not designed to be stealthy, allowing reliable…

Cryptography and Security · Computer Science 2026-05-25 Sarthak Choudhary , Nils Palumbo , Ashish Hooda , Krishnamurthy Dj Dvijotham , Somesh Jha

Large language model (LLM) agents increasingly leverage long term memory to support persistent and autonomous task execution. However, this capability also introduces a new attack surface: memory poisoning, where adversaries can inject…

Cryptography and Security · Computer Science 2026-05-29 Hongtao Wang , Se Yang , Yu Chen , Puzhuo Liu

The advent of tool-using LLM agents shifts safety monitoring from output moderation to auditing long, noisy interaction trajectories, where risk-critical evidence is sparse-making standard binary supervision poorly suited for credit…

Machine Learning · Computer Science 2026-04-07 Lin Wang , Junfeng Fang , Dan Zhang , Fei Shen , Xiang Wang , Tat-Seng Chua

Language models pre-trained on web-scale corpora demonstrate impressive capabilities on diverse downstream tasks. However, there is increasing concern whether such capabilities might arise from evaluation datasets being included in the…

Computation and Language · Computer Science 2024-01-12 Minhao Jiang , Ken Ziyu Liu , Ming Zhong , Rylan Schaeffer , Siru Ouyang , Jiawei Han , Sanmi Koyejo

Large Language Model (LLM)-based agents solve complex tasks through iterative reasoning, exploration, and tool-use, a process that can result in long, expensive context histories. While state-of-the-art Software Engineering (SE) agents like…

Software Engineering · Computer Science 2025-10-28 Tobias Lindenbauer , Igor Slinko , Ludwig Felder , Egor Bogomolov , Yaroslav Zharov

There has been a growing interest in developing learner models to enhance learning and teaching experiences in educational environments. However, existing works have primarily focused on structured environments relying on meticulously…

Machine Learning · Computer Science 2024-05-01 Bahar Radmehr , Adish Singla , Tanja Käser

Persistent external memory enables LLM agents to maintain context across sessions, yet its security properties remain formally uncharacterized. We formalize memory poisoning attacks on retrieval-augmented agents as a Stackelberg game with a…

Cryptography and Security · Computer Science 2026-05-08 Ishrith Gowda

The incorporation of memory into agents is essential for numerous tasks within the domain of Reinforcement Learning (RL). In particular, memory is paramount for tasks that require the use of past information, adaptation to novel…

Machine Learning · Computer Science 2026-03-05 Egor Cherepanov , Nikita Kachaev , Artem Zholus , Alexey K. Kovalev , Aleksandr I. Panov

We consider a Reinforcement Learning setup where an agent interacts with an environment in observation-reward-action cycles without any (esp.\ MDP) assumptions on the environment. State aggregation and more generally feature reinforcement…

Artificial Intelligence · Computer Science 2014-07-15 Marcus Hutter

We stress test monitoring systems for detecting covert misbehavior in autonomous LLM agents (e.g., secretly sharing private information). To this end, we systematize a monitor red teaming (MRT) workflow that incorporates: (1) varying levels…

Artificial Intelligence · Computer Science 2025-08-28 Neil Kale , Chen Bo Calvin Zhang , Kevin Zhu , Ankit Aich , Paula Rodriguez , Scale Red Team , Christina Q. Knight , Zifan Wang

The security of LLM-based multi-agent systems (MAS) is critically threatened by propagation vulnerability, where malicious agents can distort collective decision-making through inter-agent message interactions. While existing supervised…

Artificial Intelligence · Computer Science 2026-04-28 Rui Miao , Yixin Liu , Yili Wang , Xu Shen , Yue Tan , Yiwei Dai , Shirui Pan , Xin Wang

Memory retention challenges in deep neural architectures have ongoing limitations in the ability to process and recall extended contextual information. Token dependencies degrade as sequence length increases, leading to a decline in…

Computation and Language · Computer Science 2025-03-26 Frederick Dillon , Gregor Halvorsen , Simon Tattershall , Magnus Rowntree , Gareth Vanderpool

For LLM agents, memory management critically impacts efficiency, quality, and security. While much research focuses on retention, selective forgetting--inspired by human cognitive processes (hippocampal indexing/consolidation theory and…

Artificial Intelligence · Computer Science 2026-04-24 Yingjie Gu , Wenjian Xiong , Liqiang Wang , Pengcheng Ren , Chao Li , Xiaojing Zhang , Yijuan Guo , Qi Sun , Jingyao Ma , Shidang Shi

LLM-based agents execute real-world workflows via tools and memory. These affordances enable ill-intended adversaries to also use these agents to carry out complex misuse scenarios. Existing agent misuse benchmarks largely test…

Computation and Language · Computer Science 2026-05-19 Nivya Talokar , Ayush K Tarun , Murari Mandal , Maksym Andriushchenko , Antoine Bosselut

Static benchmarks for harmful content detection face limitations in scalability and diversity, and may also be affected by contamination from web-scale pre-training corpora. To address these issues, we propose a framework for synthesizing…

Computation and Language · Computer Science 2026-04-21 Huije Lee , Jisu Shin , Hoyun Song , Changgeon Ko , Jong C. Park

Large language models (LLMs) are now ubiquitous in user-facing applications, yet they still generate undesirable toxic outputs, including profanity, vulgarity, and derogatory remarks. Although numerous detoxification methods exist, most…

Computation and Language · Computer Science 2025-10-24 Agam Goyal , Vedant Rathi , William Yeh , Yian Wang , Yuen Chen , Hari Sundaram

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by conditioning generation on retrieved external documents, but the effect of retrieved context is often non-trivial. In realistic retrieval settings, the retrieved…

Computation and Language · Computer Science 2026-04-17 Samuel Yeh , Sharon Li

We envision a continuous collaborative learning system where groups of LLM agents work together to solve reasoning problems, drawing on memory they collectively build to improve performance as they gain experience. This work establishes the…

Artificial Intelligence · Computer Science 2025-03-11 Julie Michelman , Nasrin Baratalipour , Matthew Abueg

Identifying the strategic uses of reformulation in discourse remains a key challenge for computational argumentation. While LLMs can detect surface-level similarity, they often fail to capture the pragmatic functions of rephrasing, such as…

Computation and Language · Computer Science 2026-03-18 Maciej Uberna , Michał Wawer , Jarosław A. Chudziak , Marcin Koszowy