Access Control Flaws

Vulnerability

Access control flaws represent critical security vulnerabilities within smart contracts or decentralized applications, where improper authorization logic allows unauthorized users to perform actions outside their intended scope. These flaws often arise from design errors in permissioning mechanisms, enabling an attacker to bypass checks and manipulate protocol state. In the context of financial derivatives, such vulnerabilities can be exploited to execute unauthorized trades, alter collateral requirements, or manipulate settlement logic.