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 21st, 2026
View repo
View results
4 / 4
Submissions
Severity
Validity
Tags
Author
#1
Snowman::mintSnowman lacks access control, allowing anyone to mint unlimited NFTs and completely bypass the airdrop merkle/staking mechanism
High
Valid
[H-01] Unrestricted NFT Min...
pazificateur69
#2
SnowmanAirdrop::claimSnowman never checks s_hasClaimedSnowman, allowing the same address to claim multiple times by replenishing their Snow balance to the merkle-tree amount
Low
Valid
[L-01] Missing Claim Status...
pazificateur69
#3
Snow::s_earnTimer is a single global timer instead of per-user mapping, breaking the documented once-a-week-per-user earn semantics and enabling permanent DoS of earnSnow via buySnow spam
Low
Valid
[L-02] Global Timer Reset i...
pazificateur69
#4
SnowmanAirdrop::MESSAGE_TYPEHASH contains a typo addres receiver instead of address receiver, making the EIP-712 digest incompatible with every standard wallet and signing library
High
Valid
[H-02] Unconsistent `MESSAG...
pazificateur69
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!