Tools Crypto Exploit Tracker exploit-0124
Exploit record
1inch Fusion v1 Re-entrancy
- Loss
- $3M
- Attack vector
- Other
- Chain
- Ethereum
- Sector
- DEX Aggregation
What happened
On March 6, 2025, a re-entrancy issue in 1inch Fusion v1's resolver contract let attackers repeatedly reuse approvals and drain roughly $2.6M.
Recursive control flow plus user-supplied values remains a classic way to manufacture losses out of otherwise respectable code. 1inch published an official statement confirming the vulnerability was in the resolver contract, not the core aggregation protocol.
On-chain references
Sources
- 1inch official statementblog.1inch.com/vulnerability-discovered-in-resolver-contract…
- Halborn analysiswww.halborn.com/blog/post/explained-the-1inch-hack-march-202…
- Rekt Newsrekt.news/1inch-rekt
One record from the Crypto Exploit Tracker, maintained by the Security Desk. Data: CSV · JSON ·RSS · CC BY 4.0 with attribution to YFarmX.Tracker updated · 15 September 2026