OpenZeppelin Contracts is a library for secure smart contract development. The ERC721Consecutive contract designed for minting NFTs in batches does not update balances when a batch has size 1 and consists of a single token. Subsequent transfers from the receiver of that token may overflow the balance as reported by balanceOf. The issue exclusively presents with batches of size 1. The issue has been patched in 4.8.2.
The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Contracts | Openzeppelin | 4.8.0 (including) | 4.8.2 (excluding) |
| Contracts_upgradeable | Openzeppelin | 4.8.0 (including) | 4.8.2 (excluding) |