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Related papers: WebInject: Prompt Injection Attack to Web Agents

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LLM workflows, which coordinate structured calls to individual LLMs/agents to achieve a particular goal, offer a promising path towards building powerful AI systems that can tackle diverse tasks. However, existing approaches for building…

Computation and Language · Computer Science 2026-05-04 Hongyeon Yu , Young-Bum Kim , Yoon Kim

Multi-modal large language models (MLLMs) have emerged as powerful tools for analyzing Internet-scale image data, offering significant benefits but also raising critical safety and societal concerns. In particular, open-weight MLLMs may be…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Zedian Shao , Hongbin Liu , Yuepeng Hu , Neil Zhenqiang Gong

Modern threats have emerged from the prevalence of social networks. Hostile actors, such as extremist groups or foreign governments, utilize these networks to run propaganda campaigns with different aims. For extremists, these campaigns are…

Social and Information Networks · Computer Science 2018-04-10 Fanyu Que , Krishnan Rajagopalan , Tauhid Zaman

LLM agents now draw on growing skill libraries to handle complex tasks. However, injecting more skills does not always improve task completion and can even degrade it. Existing methods still treat skill injection as a static step, selecting…

Artificial Intelligence · Computer Science 2026-05-29 Yanchao Li , Wanhao Liu , Ben Gao , Jiaqing Xie , Zhehong Ai , Na Zou , Yuqiang Li , Tianfan Fu

Vision-language models (VLMs) (e.g. CLIP, LLaVA) are trained on large-scale, lightly curated web datasets, leading them to learn unintended correlations between semantic concepts and unrelated visual signals. These associations degrade…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Maan Qraitem , Piotr Teterwak , Kate Saenko , Bryan A. Plummer

Indirect Prompt Injection attacks exploit the inherent limitation of Large Language Models (LLMs) to distinguish between instructions and data in their inputs. Despite numerous defense proposals, the systematic evaluation against adaptive…

Large language models (LLMs) have transformed the development of embodied intelligence. By providing a few contextual demonstrations, developers can utilize the extensive internal knowledge of LLMs to effortlessly translate complex tasks…

Artificial Intelligence · Computer Science 2024-08-07 Aishan Liu , Yuguang Zhou , Xianglong Liu , Tianyuan Zhang , Siyuan Liang , Jiakai Wang , Yanjun Pu , Tianlin Li , Junqi Zhang , Wenbo Zhou , Qing Guo , Dacheng Tao

The web is littered with images, once created for human consumption and now increasingly interpreted by agents using vision-language models (VLMs). These agents make visual decisions at scale, deciding what to click, recommend, or buy. Yet,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-18 Manuel Cherep , Pranav M R , Pattie Maes , Nikhil Singh

As AI agents powered by Large Language Models (LLMs) become increasingly versatile and capable of addressing a broad spectrum of tasks, ensuring their security has become a critical challenge. Among the most pressing threats are prompt…

Generative large vision-language models (LVLMs) have recently achieved impressive performance gains, and their user base is growing rapidly. However, the security of LVLMs, in particular in a long-context multi-turn setting, is largely…

Computer Vision and Pattern Recognition · Computer Science 2026-02-19 Christian Schlarmann , Matthias Hein

LLM agents are evolving rapidly, powered by code execution, tools, and the recently introduced agent skills feature. Skills allow users to extend LLM applications with specialized third-party code, knowledge, and instructions. Although this…

Cryptography and Security · Computer Science 2026-02-26 David Schmotz , Luca Beurer-Kellner , Sahar Abdelnabi , Maksym Andriushchenko

We demonstrate how AI-powered cybersecurity tools can be turned against themselves through prompt injection attacks. Prompt injection is reminiscent of cross-site scripting (XSS): malicious text is hidden within seemingly trusted content,…

Cryptography and Security · Computer Science 2025-11-18 Víctor Mayoral-Vilches , Per Mannermaa Rynning

Recently, deep networks have achieved impressive semantic segmentation performance, in particular thanks to their use of larger contextual information. In this paper, we show that the resulting networks are sensitive not only to global…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Krishna Kanth Nakka , Mathieu Salzmann

In-context learning (ICL) has emerged as a powerful paradigm leveraging LLMs for specific downstream tasks by utilizing labeled examples as demonstrations (demos) in the preconditioned prompts. Despite its promising performance, crafted…

Machine Learning · Computer Science 2025-05-30 Xiangyu Zhou , Yao Qiang , Saleh Zare Zade , Prashant Khanduri , Dongxiao Zhu

Memory makes LLM-based web agents personalized, powerful, yet exploitable. By storing past interactions to personalize future tasks, agents inadvertently create a persistent attack surface that spans websites and sessions. While existing…

Cryptography and Security · Computer Science 2026-04-08 Wei Zou , Mingwen Dong , Miguel Romero Calvo , Shuaichen Chang , Jiang Guo , Dongkyu Lee , Xing Niu , Xiaofei Ma , Yanjun Qi , Jiarong Jiang

Agents powered by large language models (LLMs) have demonstrated strong capabilities in a wide range of complex, real-world applications. However, LLM agents with a compromised memory bank may easily produce harmful outputs when the past…

Machine Learning · Computer Science 2026-02-16 Shen Dong , Shaochen Xu , Pengfei He , Yige Li , Jiliang Tang , Tianming Liu , Hui Liu , Zhen Xiang

Agent skills are increasingly used to extend LLM agents with task-specific instructions, executable scripts, and auxiliary resources. While improving reusability, this modular design also introduces a new supply-chain attack surface: a…

Cryptography and Security · Computer Science 2026-05-19 Xiaojun Jia , Jie Liao , Simeng Qin , Jindong Gu , Wenqi Ren , Xiaochun Cao , Yang Liu , Philip Torr

Multi-agent systems coordinate LLM-based agents to perform tasks on users' behalf. In real-world applications, multi-agent systems will inevitably interact with untrusted inputs, such as malicious Web content, files, email attachments, and…

Cryptography and Security · Computer Science 2025-09-16 Harold Triedman , Rishi Jha , Vitaly Shmatikov

Recent advances in operating system (OS) agents have enabled vision-language models (VLMs) to directly control a user's computer. Unlike conventional VLMs that passively output text, OS agents autonomously perform computer-based tasks in…

Cryptography and Security · Computer Science 2026-01-28 Lukas Aichberger , Alasdair Paren , Guohao Li , Philip Torr , Yarin Gal , Adel Bibi

Large language models have become increasingly prominent, also signaling a shift towards multimodality as the next frontier in artificial intelligence, where their embeddings are harnessed as prompts to generate textual content.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Jiachen Sun , Changsheng Wang , Jiongxiao Wang , Yiwei Zhang , Chaowei Xiao