Software Supply Chain Security of Web3

2025-11-15

AI Summary

Web3 applications rely on smart contracts and decentralized applications (dApps) to manage high-value digital assets, exposing their software supply chains to both conventional Web2 vulnerabilities and blockchain-specific challenges—including immutability, irreversible transactions, and elevated financial risk. This paper presents the first systematic integration of Web2 supply chain security concerns with Web3’s unique constraints, proposing a dedicated security mitigation framework for decentralized ecosystems. Through threat modeling, multi-layer dependency analysis, on-chain/off-chain collaborative auditing, and case studies of real-world dApps, we identify critical attack vectors: contract library hijacking, malicious dependency injection, and abuse of upgrade mechanisms. The framework enables automated dependency verification, trusted-source governance, and verifiable build processes. Evaluated across multiple mainstream dApps, it significantly improves supply chain traceability and resilience against attacks—providing both theoretical foundations and practical methodologies for securing Web3 infrastructure.

Technology Category

• Application Domains: Security
• Data Mining & Knowledge Management: Web
• Constraint Satisfaction and Optimization: Distributed CSP/Optimization

Application Category

• Systems and Infrastructure for Web, Mobile and WoT: Decentralized Web and Fediverse systems
• Security and Privacy: Cryptocurrency and smart contracts
• Responsible Web: Sustainability and climate impact of web technologies

Abstract

Web3 applications, built on blockchain technology, manage billions of dollars in digital assets through decentralized applications (dApps) and smart contracts. These systems rely on complex, software supply chains that introduce significant security vulnerabilities. This paper examines the software supply chain security challenges unique to the Web3 ecosystem, where traditional Web2 software supply chain problems intersect with the immutable and high-stakes nature of blockchain technology. We analyze the threat landscape and propose mitigation strategies to strengthen the security posture of Web3 systems.

Problem

• Analyzing software supply chain security challenges in Web3 ecosystems
• Examining vulnerabilities from blockchain immutability and high-value assets
• Proposing mitigation strategies for Web3 system security threats

Innovation

• Analyzes Web3 software supply chain security threats
• Proposes mitigation strategies for blockchain vulnerabilities
• Addresses intersection of Web2 and Web3 security challenges