mediumLogic errorEVM-Solidity
NextGen: On a Linear or Exponential Descending Sale Model, a user that mints on the last `block.timestamp` mints at an unexpected price.
- Payout
- $0
- Protocol
- NextGen
- Disclosed
- Jan 8, 2024
- Source
- code4rena
The NextGen protocol contained a logic error in its descending price auction mechanism that caused users to overpay for NFTs. Specifically, the getPrice function incorrectly evaluated the final timestamp of the sale due to an exclusive boundary condition. As a …
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References
- https://github.com/code-423n4/2023-10-nextgen-findings/issues/1275
- https://github.com/code-423n4/2023-10-nextgen-findings
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