OpenZeppelin Contracts for Cairo account cannot process transactions on Goerli
### Impact
This vulnerability affects all accounts (vanilla and ethereum flavors) in the v0.2.0 release of OpenZeppelin Contracts for Cairo
https://github.com/OpenZeppelin/cairo-contracts/releases/tag/v0.2.0, which are not whitelisted on StarkNet mainnet, so only goerli deployments of v0.2.0 accounts are affected.
This faulty behavior is not observed in StarkNet's testing framework
https://github.com/starkware-libs/cairo-lang/blob/master/src/starkware/starknet/testing/starknet.py, so don't rely on it passing to detect this issue on custom accounts.
### Patches
This bug has been patched in v0.2.1
https://github.com/OpenZeppelin/cairo-contracts/releases/tag/v0.2.1.
### References
The issue is detailed in
https://github.com/OpenZeppelin/cairo-contracts/issues/386.
### For more information
If you have any questions or comments about this advisory:
* Open an issue in the Contracts for Cairo repo
https://github.com/OpenZeppelin/cairo-contracts/issues/new/choose
* Email us at [security@openzeppelin.com](mailto:security@openzeppelin.com)