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
Jun 10th, 2026 → Jun 10th, 2026
View repo
View results
4 / 4
Submissions
Severity
Validity
Tags
Author
#1
Missing access control on `Snowman::mintSnowman` lets anyone mint unlimited Snowman NFTs for free, bypassing the airdrop
High
Valid
[H-01] Unrestricted NFT Min...
colddecemberrrr
#2
Global `s_earnTimer` in `Snow::earnSnow` lets the first claimer each week block all other users from earning free Snow
Low
Valid
[L-02] Global Timer Reset i...
colddecemberrrr
#3
`SnowmanAirdrop::claimSnowman` never checks `s_hasClaimedSnowman`, allowing claims to be replayed and extra NFTs minted
Low
Valid
[L-01] Missing Claim Status...
colddecemberrrr
#4
Malformed EIP-712 type string in SnowmanAirdrop::MESSAGE_TYPEHASH (addres typo + spaces) breaks signature compatibility with standard tooling
High
Valid
[H-02] Unconsistent `MESSAG...
colddecemberrrr
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!
