AUDITS / 1INCH

1inch Security Audits

Decurity has completed 23 security engagements for 1inch between 2022 and 2026, identifying 143 findings (6 critical, 6 high, 19 medium, 41 low and 71 info). 14 reports are published in full.

REQUEST AN AUDIT1INCH ↗
ENGAGEMENTS
ENGAGEMENTDATETEAMFINDINGSEVIDENCE
1inch SwapVMJuly 20266 researchers1 INFO
1inch SwapVM&Aqua Audit 2601
DEX · Solidity
January 20267 researchers1 HIGH2 MEDIUMReport ↗
1inch SwapVM&Aqua Audit
DEX · Solidity
October 20251 researcher2 CRITICAL4 MEDIUM3 LOW4 INFOReport ↗
1inch Fusion Native Swap Audit
DEX · Cross-chain · Solidity
September 20257 researchers6 LOW2 INFO
1inch Crosschain Update Audit
DEX · Cross-chain · Bridge · Solidity
August 20257 researchers1 INFO
1inch Solana Crosschain Update Audit
DEX · Cross-chain · Bridge · Solana · Rust
July 20253 researchers1 CRITICAL1 HIGH1 MEDIUM2 LOW
1inch Cross-Chain Swaps Solana
DEX · Cross-chain · Bridge · Solana · Rust
June 20257 researchers2 HIGH1 MEDIUM2 LOW1 INFO
1inch Fees Update
DEX · Solidity
April 20253 researchers
1inch Fusion Solana Audit
DEX · Rust · Solana
February 20253 researchers4 LOW2 INFO
1inch updates 2501
DEX · Solidity
January 20253 researchers1 MEDIUM4 INFO
1inch Cross-Chain Resolver Audit
DEX · Cross-chain · Bridge · Solidity
November 20244 researchers1 MEDIUM
1inch (Cross-Chain Swaps V2)
DEX · Cross-chain · Bridge · Solidity
July 20244 researchers1 HIGH1 LOW2 INFOReport ↗
1inch (Cross-chain atomic swaps)
DEX · Bridge · Solidity
March 20243 researchers1 HIGH2 MEDIUM2 LOW1 INFOReport ↗
1inch (Fusion update 0324)
DEX · Solidity
March 20243 researchers1 LOW1 INFOReport ↗
1inch (SELFDESTRUCT refactoring)
DEX · Solidity
February 20244 researchers1 INFOReport ↗
1inch (SettlementExtension November 2023)
DEX · Solidity
November 20235 researchers2 INFOReport ↗
1inch (Aggregation & Limit Order October update)October 20235 researchers5 LOW4 INFOReport ↗
1inch (Calldata Compression)
Solidity · Yul
May 20233 researchers1 LOWReport ↗
1inch (aggregator v6)
DEX · Solidity · Yul
March 20234 researchers2 MEDIUM6 LOW17 INFOReport ↗
1inch (Fusion update 2303)
DEX · Solidity · Yul
March 20234 researchers6 INFOReport ↗
1inch (limit-order-settlement 2)
DEX · Solidity
December 20224 researchers4 LOW10 INFOReport ↗
1inch (farming)
Staking · Solidity
November 20224 researchers4 MEDIUM1 LOW6 INFOReport ↗
1inch (limit-order-settlement)
DEX · Solidity
October 20224 researchers3 CRITICAL1 MEDIUM3 LOW6 INFOReport ↗
TOTAL ACROSS ALL ENGAGEMENTS6 CRITICAL6 HIGH19 MEDIUM41 LOW71 INFO

Finding counts are taken from our internal issue tracker for each engagement. Dates are month-precision. See how we audit and the machine-readable dataset.

AREAS COVERED
DEX AND AMM SECURITY AUDITSSTAKING, LIQUID STAKING AND RESTAKING AUDITSBRIDGE AND CROSS-CHAIN SECURITY AUDITSSOLANA PROGRAM SECURITY AUDITS
RELATED RESEARCH
Yul Calldata Corruption — 1inch Postmortem
A postmortem of one of the toughest DeFi exploits of 2025: how a Yul assembly calldata handling bug in a 1inch resolver contract was exploited, and what the class of bug looks like.
SIMILAR PROTOCOLS WE HAVE AUDITED
SYMBIOSIS FINANCESOCKET.TECHSTABLETOKENLONVOOIASTERIZM

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