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
Aug 6th, 2026 → Aug 10th, 2026
View repo
View results
7 / 7
Submissions
Severity
Validity
Tags
Author
#1
M-1 Looping in PuppyRaffle::enterRaffle causing significant increase of gas cost
Medium
Valid
[M-01] `PuppyRaffle: enterR...
jekysah
#2
H-1 External call to sentValue function before changing internal state causes reentrancy attack
High
Valid
[H-02] Reentrancy Vulnerabi...
jekysah
#3
H-2 Weak Randomness allows Attackers to Predict Winners and Manipulate NFT Rarity
High
Valid
[H-03] Randomness can be gamed
jekysah
#4
# [H-04] Integer Truncation in `totalFees` Leads to Permanent Lockup of Protocol Revenue
High
Invalid
jekysah
#5
[H-04] Denial of Service (DoS) in selectWinner() via Push Payment to Malicious/Non-Receiving Recipient
Medium
Valid
[M-03] Impossible to win ra...
jekysah
#6
[H-05] Strict Balance Check in withdrawFees() Allows Anyone to Permanently Freeze Protocol Fees via Forced ETH Injection
Medium
Valid
[M-02] Slightly increasing ...
jekysah
#7
[M-2] `PuppyRaffle::getActivePlayerIndex` Returns 0 for Both Active Player at Index 0 and Non-Existent Players
Low
Valid
[L-01] Ambiguous index retu...
jekysah
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!
