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Puppy Raffle
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AI First Flight
Puppy Raffle
AI First Flight #1
Beginner Friendly
Foundry
Solidity
NFT
EXP
AI First Flight
EXP
May 31st, 2026 → Jun 7th, 2026
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5 / 5
Submissions
Severity
Validity
Tags
Author
#1
# Reentrancy in `PuppyRaffle::refund` lets a malicious player drain the entire contract balance
High
Valid
[H-02] Reentrancy Vulnerabi...
yui1853
#2
# Predictable (weak) randomness in `PuppyRaffle::selectWinner` lets an attacker choose the winner and the puppy rarity ##
High
Valid
[H-03] Randomness can be gamed
yui1853
#3
# Integer overflow / unsafe `uint64` cast in `PuppyRaffle::selectWinner` corrupts fee accounting and locks fees
High
Valid
[H-05] Typecasting from uin...
yui1853
#4
# Quadratic duplicate-check in `PuppyRaffle::enterRaffle` lets the player list grow gas costs unboundedly (DoS)
Medium
Valid
[M-01] `PuppyRaffle: enterR...
yui1853
#5
PuppyRaffle::withdrawFees strict balance check can be bricked by force-feeding ETH, locking fees
Medium
Valid
[M-02] Slightly increasing ...
yui1853
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