Submitted by 0xRajeev, also found by [adlamo](https://twitter.com/a_delamo)_
Theecrecoverfunction is used to verify and execute Meta transactions. The built-in EVM precompile ecrecover is susceptible to signature malleability (because of non-unique s and v values) which could lead to replay attacks
While this is not exploitable for replay attacks in the current implementation because of the use of nonces, this may become a vulnerability if used elsewhere.
Recommend considering using OpenZeppelins ECDSA library (which prevents this malleability) instead of the built-in function:
Splidge (Reality Cards) confirmed and acknowledged:
Splidge (Reality Cards) commented:
