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KeyringCoreV2Base::collectFees() should use Address::sendValue() instead of address.transfer()

Low/InfoKeyring Credentials·Three Sigma · Zero-knowledge compliance · 10th July, 20243S-Keyring-L01

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Description

address.transfer() hardcodes 2300 gas to forward, which may not be enough if gas costs change in the future or to is a smart contract wallet that does some logic in its receive()/fallback() function.

Recommendation

Use address::sendValue() from OpenZeppelin.

Status

Addressed in #ffe8b11.