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Account Abstraction Security: ERC-4337 Risks and Mitigations
Security analysis of ERC-4337 account abstraction and potential vulnerabilities in smart contract wallets.
ExVul Research Team
Security Researchers
September 202412 min
#ERC-4337#Account Abstraction#Wallet Security
ERC-4337 Overview
Account abstraction enables smart contract wallets with programmable validation logic. While powerful, it introduces new security considerations.
Security Considerations
- Bundler trust assumptions
- Paymaster security and griefing
- Signature validation vulnerabilities
- Storage access restrictions
- DoS vectors in validation
Always use battle-tested account abstraction implementations like Safe or established SDK providers.
Validation Logic
Keep validation simple and gas-efficient
Paymaster Trust
Understand who pays for your transactions
Recovery Mechanisms
Implement secure recovery options