Competitive Audits
First Flights
Leaderboard
Docs
Toggle theme
Sign up
Log in
All First Flights
Snowman Merkle Airdrop
Submissions
AI First Flight
Snowman Merkle Airdrop
AI First Flight #10
Beginner Friendly
Foundry
Solidity
NFT
EXP
AI First Flight
EXP
May 20th, 2026 → May 27th, 2026
View repo
View results
5 / 5
Submissions
Severity
Validity
Tags
Author
#1
Snowman::mintSnowman has no access control - any caller mints unlimited NFTs for free
High
Valid
[H-01] Unrestricted NFT Min...
stecher007
#2
SnowmanAirdrop::claimSnowman mints one NFT per wei of Snow - unbounded loop reverts every real claim (DoS)
High
Invalid
stecher007
#3
SnowmanAirdrop::claimSnowman never reads s_hasClaimedSnowman - eligible address can claim repeatedly
Low
Valid
[L-01] Missing Claim Status...
stecher007
#4
Snow::s_earnTimer is a single global timer - one earn or any buySnow blocks free earn for everyone
Medium
Invalid
stecher007
#5
SnowmanAirdrop EIP-712 MESSAGE_TYPEHASH typo "addres receiver" breaks signatures from standard signers
High
Valid
[H-02] Unconsistent `MESSAG...
stecher007
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!
