Yihang Huang
2 indexed papers
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226
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Crypto×2Comp. Eng.×2
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2026
Free-Riding in the AI Economy: Demystifying Logic Flaws in x402-Enabled Payment Systems
This paper analyzes the x402 payment protocol, revealing critical synchronization and security flaws that allow attackers to exploit payment systems and force merchants to subsidize compute costs.
Free-Riding in the AI Economy: Demystifying Logic Flaws in x402-Enabled Payment Systems
This paper analyzes the x402 payment protocol, revealing systemic vulnerabilities in state synchronization and signature design that allow attackers to exploit payment systems for resource leakage in the AI economy.
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Papers
cs.CRcs.CERecentMay 29, 2026
Free-Riding in the AI Economy: Demystifying Logic Flaws in x402-Enabled Payment Systems
Shengchen Ling, Yihang Huang, Yuan Chen, Yajin Zhou +2 more
This paper analyzes the x402 payment protocol, revealing critical synchronization and security flaws that allow attackers to exploit payment systems and force merchants to subsidize compute costs.
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cs.CRcs.CERecentMay 29, 2026