1inch Fusion

Off-Chain (Private)

Audited on 2025/07/03

No active critical issues

Summary

1inch Fusion allows users to create trade orders, trustlessly escrow the tokens, and have whitelisted market makers fill these others (supporting both complete and partial fills). The protocol also incorporates a Dutch auction mechanism with a variable exchange rate to ensure the user gets the best possible price while maintaining a fast execution time. Overall the code is well-written, well-documented, and follows best practices.

Project

1inch Network

Multi-Chain

Issues (7)

	Low	Medium	High	Critical	Total
Not fixed	4	2	-	-	6
Fixed	-	1	-	-	1
Total	4	3	0	0	7

1inch Fusion

Summary

Issues (7)

Potential Bypass of Fees Parameters in Order Creationnot_fixed/medium

Potential Surplus Fee Bypass via Inflated `estimated_dst_amount` in `get_fee_amounts()`not_fixed/medium

Consider Validating the `authority` of the `taker_src_ata` Accountnot_fixed/low

Improper Slippage Handlingnot_fixed/low

Lack of Monotonicity Enforcement in Dutch Auction Rate Bumpsnot_fixed/low

Contract (1)