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
Apr 1st, 2026 → Apr 1st, 2026
View repo
View results
5 / 5
Submissions
Severity
Validity
Tags
Author
#1
Snowman::mintSnowman() has no access control allowing anyone to mint unlimited NFTs
High
Valid
[H-01] Unrestricted NFT Min...
ikow233
#2
EIP-712 MESSAGE_TYPEHASH has typo "addres" instead of "address" breaking signature verification in claimSnowman
High
Valid
[H-02] Unconsistent `MESSAG...
ikow233
#3
Snow::s_earnTimer is a global variable instead of per-user mapping, allowing only one user to earn Snow per week globally
Low
Valid
[L-02] Global Timer Reset i...
ikow233
#4
SnowmanAirdrop::claimSnowman sets s_hasClaimedSnowman but never checks it, missing double-claim prevention
Low
Valid
[L-01] Missing Claim Status...
ikow233
#5
Snow::buySnow() traps ETH when user sends incorrect msg.value, falling through to WETH path without refunding
Medium
Invalid
ikow233
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!
