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Snowman Merkle Airdrop
Submissions
AI First Flight
Snowman Merkle Airdrop
AI First Flight #10
Beginner Friendly
Foundry
Solidity
NFT
EXP
AI First Flight
EXP
Nov 6th, 2026 → Nov 13th, 2026
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8 / 8
Submissions
Severity
Validity
Tags
Author
#1
Anyone can call Snowman.mintSnowman() and mint unlimited NFTs for free
High
Valid
[H-01] Unrestricted NFT Min...
coolteddy141
#2
Snow weekly earn timer is global, not per user, so one earn or purchase blocks every other user for a week
Low
Valid
[L-02] Global Timer Reset i...
coolteddy141
#3
Airdrop claim flag is set but never checked, so a user can claim repeatedly after restoring their Snow balance
Low
Valid
[L-01] Missing Claim Status...
coolteddy141
#4
Merkle leaf is built from the receiver's live Snow balance, so any balance change before claiming breaks the airdrop
Medium
Valid
[M-01] DoS to a user trying...
coolteddy141
#5
buySnow() charges WETH on any non-exact ETH payment and keeps the ETH, so a user can pay twice
Medium
Invalid
coolteddy141
#6
EIP-712 typehash misspells 'address' as 'addres', so standard typed-data signatures fail verification
High
Valid
[H-02] Unconsistent `MESSAG...
coolteddy141
#7
collectFee() uses an unchecked WETH transfer, so a failed fee collection can pass silently
Low
Invalid
coolteddy141
#8
Snowman.tokenURI() existence check can never run because ownerOf() reverts first
Low
Invalid
coolteddy141
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