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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
Jul 19th, 2026 → Jul 19th, 2026
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8 / 8
Submissions
Severity
Validity
Tags
Author
#1
`Snowman::mintSnowman` has no access control, anyone can mint unlimited NFTs
High
Valid
[H-01] Unrestricted NFT Min...
furkanumut
#2
`SnowmanAirdrop::claimSnowman` binds eligibility to the live `balanceOf`, any balance change bricks the claim
Medium
Valid
[M-01] DoS to a user trying...
furkanumut
#3
`SnowmanAirdrop::claimSnowman` never checks `s_hasClaimedSnowman`, enabling repeat claims of the same allocation
Low
Valid
[L-01] Missing Claim Status...
furkanumut
#4
`Snow::earnSnow` uses a single global timer, so only one user per week can earn across the entire protocol
Low
Valid
[L-02] Global Timer Reset i...
furkanumut
#5
`Snow::buySnow` resets the shared earn cooldown on every purchase, blocking all free earns for another week
Low
Valid
[L-02] Global Timer Reset i...
furkanumut
#6
`Snow::buySnow` lacks a zero-amount check, enabling zero-cost permanent DoS of `earnSnow`
Low
Valid
[L-02] Global Timer Reset i...
furkanumut
#7
`Snow::buySnow` pulls the full WETH fee even when the caller also sent ETH, keeping both payments
Medium
Invalid
furkanumut
#8
`SnowmanAirdrop::_isValidSignature` accepts only ECDSA signatures, permanently excluding contract-based Snow holders from claiming
Medium
Invalid
furkanumut
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