mediumLogic errorEVM-Solidity
Putty: `fillOrder()` and `exercise()` may lock Ether sent to the contract, forever
- Payout
- $0
- Protocol
- Putty
- Disclosed
- Aug 7, 2026
- Source
- code4rena
The Putty protocol's `fillOrder` and `exercise` functions are marked as payable to accommodate Ether-based transactions. However, these functions lack logic to validate that `msg.value` is only sent when required by the specific execution path. Users can accid …
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References
- https://github.com/code-423n4/2022-06-putty-findings/issues/226
- https://github.com/code-423n4/2022-06-putty-findings
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