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Union IBC - Prevent acknowledgement replay #3794

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hussein-aitlahcen opened this issue Feb 17, 2025 · 0 comments
Open

Union IBC - Prevent acknowledgement replay #3794

hussein-aitlahcen opened this issue Feb 17, 2025 · 0 comments
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A-cosmwasm Area: our CosmWasm stack A-evm Area: our EVM stack C-bug Category: This is a bug. P-high High priority

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@hussein-aitlahcen
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Some protocols may rely on acknowledgement to execute special operation (zkgm with market makers, repaying on the source). We currently erase the packet commitment after it's acnkowledged. As our packets aren't embedding a unique sequence, one could send-ack-send-ack the same packet (resulting in same hash and commitment key then).
@hussein-aitlahcen hussein-aitlahcen added C-bug Category: This is a bug. P-high High priority A-cosmwasm Area: our CosmWasm stack A-evm Area: our EVM stack labels Feb 17, 2025
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A-cosmwasm Area: our CosmWasm stack A-evm Area: our EVM stack C-bug Category: This is a bug. P-high High priority
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