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Snowman Merkle Airdrop
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AI First Flight
Snowman Merkle Airdrop
AI First Flight #10
Beginner Friendly
Foundry
Solidity
NFT
EXP
AI First Flight
EXP
Aug 22nd, 2026 → Aug 22nd, 2026
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4 / 4
Submissions
Severity
Validity
Tags
Author
#1
Missing access control on Snowman.mintSnowman allows anyone to mint unlimited free Snowman NFTs
High
Valid
[H-01] Unrestricted NFT Min...
zzzz
#2
SnowmanAirdrop never checks s_hasClaimedSnowman - one signature can be replayed indefinitely for extra NFTs
Low
Valid
[L-01] Missing Claim Status...
zzzz
#3
Snow.s_earnTimer is a single global variable instead of per-user - any address freely locks every other user out of free earning
Low
Valid
[L-02] Global Timer Reset i...
zzzz
#4
Low-severity bundle: malformed EIP-712 typehash breaks standard signing tools; buySnow can silently double-charge ETH+WETH
Low
Invalid
zzzz
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