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The Model Context Protocol (MCP) is emerging as a common interface connecting large language models (LLMs) with external services. Remote deployments are becoming increasingly important as agents connect to user-linked online services, such…

Cryptography and Security · Computer Science 2026-05-22 Huijun Zhou , Xiaohan Zhang , Haozhe Zhang , Haoyang Zhang , Mi Zhang , Min Yang

By providing a standardized interface for LLM agents to interact with external tools, the Model Context Protocol (MCP) is quickly becoming a cornerstone of the modern autonomous agent ecosystem. However, it creates novel attack surfaces due…

Cryptography and Security · Computer Science 2025-08-22 Zhiqiang Wang , Yichao Gao , Yanting Wang , Suyuan Liu , Haifeng Sun , Haoran Cheng , Guanquan Shi , Haohua Du , Xiangyang Li

The Model Context Protocol (MCP) is a new and emerging technology that extends the functionality of large language models, improving workflows but also exposing users to a new attack surface. Several studies have highlighted related…

Cryptography and Security · Computer Science 2026-04-14 Tobias Mattsson , Samuel Nyberg , Anton Borg , Ricardo Britto

Large Language Models (LLMs) demonstrate strong capabilities in solving complex tasks when integrated with external tools. The Model Context Protocol (MCP) has become a standard interface for enabling such tool-based interactions. However,…

Cryptography and Security · Computer Science 2026-01-23 Jiayi Fu , Yuansen Zhang , Yinggui Wang

The Model Context Protocol (MCP) has emerged as the de facto standard for connecting Large Language Models (LLMs) to external data and tools, effectively functioning as the "USB-C for Agentic AI." While this decoupling of context and…

Cryptography and Security · Computer Science 2025-12-16 Shiva Gaire , Srijan Gyawali , Saroj Mishra , Suman Niroula , Dilip Thakur , Umesh Yadav

The development of large language models (LLMs) has entered in a experience-driven era, flagged by the emergence of environment feedback-driven learning via reinforcement learning and tool-using agents. This encourages the emergenece of…

Machine Learning · Computer Science 2025-06-17 Junfeng Fang , Zijun Yao , Ruipeng Wang , Haokai Ma , Xiang Wang , Tat-Seng Chua

The Model Context Protocol (MCP) has emerged as a widely adopted mechanism for connecting large language models to external tools and resources. While MCP promises seamless extensibility and rich integrations, it also introduces a…

Cryptography and Security · Computer Science 2025-07-10 Zhihao Li , Kun Li , Boyang Ma , Minghui Xu , Yue Zhang , Xiuzhen Cheng

The Model Context Protocol (MCP) is emerging as a standard interface through which large language model (LLM) agents discover and invoke external tools. However, existing MCP evaluations fall short along three key axes: realistic multi-step…

Model Context Protocol (MCP) has become a key infrastructure for connecting LLMs with external tools, scaling to 10,000+ MCP servers with diverse tools. Unfortunately, there is still a large gap between real-world MCP usage and current…

Artificial Intelligence · Computer Science 2026-02-27 Guozhao Mo , Wenliang Zhong , Jiawei Chen , Qianhao Yuan , Xuanang Chen , Yaojie Lu , Hongyu Lin , Ben He , Xianpei Han , Le Sun

The Model Context Protocol (MCP) standardizes tool use for LLM-based agents and enable third-party servers. This openness introduces a security misalignment: agents implicitly trust tools exposed by potentially untrusted MCP servers.…

Cryptography and Security · Computer Science 2026-02-25 Zhenhong Zhou , Yuanhe Zhang , Hongwei Cai , Moayad Aloqaily , Ouns Bouachir , Linsey Pang , Prakhar Mehrotra , Kun Wang , Qingsong Wen

The Model Context Protocol has emerged as a transformative standard for connecting large language models to external data sources and tools, rapidly gaining adoption across major AI providers and development platforms. However, existing…

Artificial Intelligence · Computer Science 2025-08-21 Ziyang Luo , Zhiqi Shen , Wenzhuo Yang , Zirui Zhao , Prathyusha Jwalapuram , Amrita Saha , Doyen Sahoo , Silvio Savarese , Caiming Xiong , Junnan Li

The Model Context Protocol (MCP) enables large language models (LLMs) to access external resources on demand. While commonly assumed to enhance performance, how LLMs actually leverage this capability remains poorly understood. We introduce…

Artificial Intelligence · Computer Science 2025-08-19 Wei Song , Haonan Zhong , Ziqi Ding , Jingling Xue , Yuekang Li

Model Context Protocol (MCP) have quickly become the interface layer between LLM agents and external tools, yet they also introduce unsafe data flows that existing analyzers handle poorly. Vulnerabilities manifest in two directions:…

Software Engineering · Computer Science 2026-05-11 Xinyi Hou , Yanjie Zhao , Haoyu Wang

Large Language Models (LLMs) remain static in functionality after training, and extending their capabilities requires integration with external data, computation, and services. The Model Context Protocol (MCP) has emerged as a standard…

Networking and Internet Architecture · Computer Science 2025-10-16 Enhan Li , Hongyang Du , Kaibin Huang

Large language models hold considerable promise for supporting forensic investigations, but their widespread adoption is hindered by a lack of transparency, explainability, and reproducibility. This paper explores how the emerging Model…

Cryptography and Security · Computer Science 2025-06-03 Jan-Niclas Hilgert , Carlo Jakobs , Michael Külper , Martin Lambertz , Axel Mahr , Elmar Padilla

The Model Context Protocol (MCP) has emerged as a standard for connecting Large Language Models (LLMs) to external tools and data. However, MCP servers often expose privileged capabilities, such as file system access, network requests, and…

Cryptography and Security · Computer Science 2026-03-24 Charoes Huang , Xin Huang , Amin Milani Fard

Large Language Models (LLMs) are increasingly augmented with external tools through standardized interfaces like the Model Context Protocol (MCP). However, current MCP implementations face critical limitations: they typically require local…

Cryptography and Security · Computer Science 2026-03-11 Arash Ahmadi , Sarah Sharif , Yaser M. Banad

Large Language Models (LLMs) are increasingly equipped with capabilities of real-time web search and integrated with protocols like Model Context Protocol (MCP). This extension could introduce new security vulnerabilities. We present a…

Cryptography and Security · Computer Science 2025-05-23 Junjie Xiong , Changjia Zhu , Shuhang Lin , Chong Zhang , Yongfeng Zhang , Yao Liu , Lingyao Li

Large language models(LLMs) are increasingly integrated with external systems through the Model Context Protocol(MCP),which standardizes tool invocation and has rapidly become a backbone for LLM-powered applications. While this paradigm…

Cryptography and Security · Computer Science 2026-05-04 Shuli Zhao , Qinsheng Hou , Zihan Zhan , Yanhao Wang , Yuchong Xie , Yu Guo , Libo Chen , Shenghong Li , Zhi Xue

Model Context Protocol (MCP) is a rapidly adopted standard for defining and invoking external tools in LLM applications. The multi-layered architecture of MCP introduces new attack surfaces such as tool poisoning, in addition to traditional…

Cryptography and Security · Computer Science 2026-04-21 İpek Abasıkeleş Turgut , Edip Gümüş