Competitive Audits
First Flights
Leaderboard
Docs
Toggle theme
Sign up
Log in
All First Flights
Puppy Raffle
Submissions
AI First Flight
Puppy Raffle
AI First Flight #1
Beginner Friendly
Foundry
Solidity
NFT
EXP
AI First Flight
EXP
Jan 2nd, 2026 → Jan 9th, 2026
View repo
View results
6 / 6
Submissions
Severity
Validity
Tags
Author
#1
# [H-1] Denial of Service (DoS) in PuppyRaffle::enterRaffle due to quadratic gas cost growth in duplicate checks
Medium
Valid
[M-01] `PuppyRaffle: enterR...
alenkte
#2
[H-2] Reentrancy in PuppyRaffle::refund allows entrants to drain all contract funds
High
Valid
[H-02] Reentrancy Vulnerabi...
alenkte
#3
[H-3] Weak Randomness in selectWinner allows anyone to choose the winner
High
Valid
[H-03] Randomness can be gamed
alenkte
#4
[H-4] Integer Overflow in totalFees causes loss of protocol fees and permanent DoS
High
Valid
[H-05] Typecasting from uin...
alenkte
#5
[M-1] Strict equality check in withdrawFees allows malicious user to permanently lock protocol fees
Medium
Valid
[M-02] Slightly increasing ...
alenkte
#6
# [L-1] getActivePlayerIndex returns ambiguous result for index 0 and creates DoS risk
Low
Valid
[L-01] Ambiguous index retu...
alenkte
Previous
1
Next
Support
FAQs
Can't find an answer? Chat with us on Discord, Twitter or Linkedin.
What is Cyfrin CodeHawks?
What is a competitive audit?
How can I host a competition on CodeHawks?
How is a contest prize pool determined?
How do I get rewarded?
What is a First Flight?
Give us feedback!