
Panini is an on-chain collectibles platform that allows authorised operators to mint NFTs, and users to lock NFTs for bridging, and unlock escrowed tokens via signature-verified requests while enforcing marketplace-whitelisted trades. It also manages royalty funds through a dedicated custody vault that supports controlled withdrawals and Uniswap-based token swaps.
| Target | Type | Severity |
|---|---|---|
https://github.com/paniniamerica/SmartContracts/tree/ae1e13d271eaedec93ef34828719832be5458e1c Copy | Smart Contract | Critical |
We are looking for evidence and reasons for incorrect behavior of the smart contract, which could cause unintended functionality:
Clear wording:
Allocated bounty reward will be split between all researchers who submitted the same issue (where uniq issues receive 1/3 of the pool and researchers will get 1/9 each of the initial reward pool).
Full Reward: If a critical vulnerability is found by only one participant, that reporter receives 100% of the bounty pool.
If multiple participants find the same vulnerability, the allocated bounty for that issue (bounty pool always equally split among all unique issues reported) is divided equally among all reporters. Example: If two researchers report the same vulnerability, each receives 50% of the allocated bounty. It can be 50% of the bounty pool if only one eligible issue was reported.
Split Based on Uniqueness of issues reported:
Each will receive 50% of the bounty pool.
HackenProof is entitled to 10% of rewards as the fee for the triage and other services‼️
Do not discuss this program or any vulnerabilities (even resolved ones) outside of the program without express consent from the organization
We are happy to thank everyone who submits valid reports which help us improve our security. However, only those that meet the following eligibility requirements may receive a monetary reward:
Hacken - October 2025
contracts/PaniniNfts/PaniniNFTs.sol
contracts/PaniniRoyaltyVault/PaniniRoyaltyVault.sol
contracts/PaniniNfts/smartlocks/SmartValidator.sol
contracts/PaniniNfts/limitbreak/CreatorTokenValidator.sol