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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) 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) has been proposed as a unifying standard for connecting large language models (LLMs) with external tools and resources, promising the same role for AI integration that HTTP and USB played for the Web and…

Computers and Society · Computer Science 2025-11-18 Hechuan Guo , Yongle Hao , Yue Zhang , Minghui Xu , Peizhuo Lv , Jiezhi Chen , Xiuzhen Cheng

The Model Context Protocol (MCP) has emerged as a universal standard that enables AI agents to seamlessly connect with external tools, significantly enhancing their functionality. However, while MCP brings notable benefits, it also…

Cryptography and Security · Computer Science 2026-05-26 Yongjian Guo , Puzhuo Liu , Wanlun Ma , Zehang Deng , Xiaogang Zhu , Peng Di , Xi Xiao , Sheng Wen

The Model Context Protocol (MCP) has rapidly become a de facto standard for connecting LLM-based agents with external tools via reusable MCP servers. In practice, however, server selection and onboarding rely heavily on free-text tool…

Software Engineering · Computer Science 2026-02-24 Peiran Wang , Ying Li , Yuqiang Sun , Chengwei Liu , Yang Liu , Yuan Tian

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…

To reduce development overhead and enable seamless integration between potential components comprising any given generative AI application, the Model Context Protocol (MCP) (Anthropic, 2024) has recently been released and subsequently…

Cryptography and Security · Computer Science 2025-04-14 Brandon Radosevich , John Halloran

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

The rapid adoption of foundation models has significantly expanded the capabilities of software systems, enabling them to perform complex language, reasoning, and interaction tasks that were previously difficult to automate. However, this…

Software Engineering · Computer Science 2026-03-09 Mina Taraghi , Mohammad Mehdi Morovati , Foutse Khomh

The Model Context Protocol (MCP) has recently emerged as a standardized interface for connecting language models with external tools and data. As the ecosystem rapidly expands, the lack of a structured, comprehensive view of existing MCP…

Cryptography and Security · Computer Science 2025-07-01 Zhiwei Lin , Bonan Ruan , Jiahao Liu , Weibo Zhao

Multi-server MCP agents create an information-flow control problem: faithful tool composition can turn individually benign read/write permissions into cross-boundary credential propagation -- a structural side effect of workflow topology,…

Artificial Intelligence · Computer Science 2026-05-01 Haonan Li , Tianjun Sun , Yongqing Wang , Qisheng Zhang

The Model Context Protocol (MCP) represents a significant advancement in AI-tool integration, enabling seamless communication between AI agents and external services. However, this connectivity introduces novel attack vectors that remain…

Cryptography and Security · Computer Science 2025-07-29 Nicola Croce , Tobin South

The model context protocol (MCP) standardizes how LLMs connect to external tools and data sources, enabling faster integration but introducing new attack vectors. Despite the growing adoption of MCP, existing MCP security studies classify…

Cryptography and Security · Computer Science 2026-05-20 Yiheng Huang , Zhijia Zhao , Bihuan Chen , Susheng Wu , Zhuotong Zhou , Yiheng Cao , Xin Hu , Xin Peng

Model Context Protocol (MCP) servers have rapidly emerged over the past year as a widely adopted way to enable Large Language Model (LLM) agents to access dynamic, real-world tools. As MCP servers proliferate and become easy to adopt via…

Cryptography and Security · Computer Science 2026-03-12 Pratyay Kumar , Miguel Antonio Guirao Aguilera , Srikathyayani Srikanteswara , Satyajayant Misra , Abu Saleh Md Tayeen

The Model Context Protocol (MCP) is a recently proposed interoperability standard that unifies how AI agents connect with external tools and data sources. By defining a set of common client-server message exchange clauses, MCP replaces…

Cryptography and Security · Computer Science 2026-03-12 Nanzi Yang , Weiheng Bai , Kangjie Lu

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

This paper identifies and analyzes a novel vulnerability class in Model Context Protocol (MCP) based agent systems. The attack chain describes and demonstrates how benign, individually authorized tasks can be orchestrated to produce harmful…

Cryptography and Security · Computer Science 2025-08-28 David Noever

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

Large Language Models (LLMs) are increasingly integrated into real-world applications via the Model Context Protocol (MCP), a universal open standard for connecting AI agents with data sources and external tools. While MCP enhances the…

Cryptography and Security · Computer Science 2026-02-13 Yixuan Yang , Cuifeng Gao , Daoyuan Wu , Yufan Chen , Yingjiu Li , Shuai Wang

To standardize interactions between LLM-based agents and their environments, the Model Context Protocol (MCP) was proposed and has since been widely adopted. However, integrating external tools expands the attack surface, exposing agents to…

Cryptography and Security · Computer Science 2026-01-13 Ruiqi Li , Zhiqiang Wang , Yunhao Yao , Xiang-Yang Li