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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
Aug 26th, 2026 → Sep 2nd, 2026
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4 / 4
Submissions
Severity
Validity
Tags
Author
#1
`buySnow` never refunds `msg.value` in the WETH branch, so a user who sends non-exact ETH pays in both ETH and WETH
Medium
Invalid
duranovskyy
#2
Missing access control in Snowman::mintSnowman lets anyone mint unlimited Snowman NFTs
High
Valid
[H-01] Unrestricted NFT Min...
duranovskyy
#3
SnowmanAirdrop::claimSnowman never reads s_hasClaimedSnowman, letting eligible users claim repeatedly
Low
Valid
[L-01] Missing Claim Status...
duranovskyy
#4
Malformed EIP-712 MESSAGE_TYPEHASH in SnowmanAirdrop breaks signature verification for standard signers
High
Valid
[H-02] Unconsistent `MESSAG...
duranovskyy
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