Euler Finance
Moderate risk — recovering from a $197M exploit with a redesigned system that introduces different risks
Top Risks
1
History of $197M flash loan exploit in March 2023 (funds recovered) demonstrates protocol-level vulnerability precedent
2
Modular Euler Vault Kit allows permissionless vault creation, expanding smart contract attack surface
3
Ethereum Vault Connector linking arbitrary ERC-4626 vaults introduces cross-vault contagion vectors
Risk Breakdown
Frequently Asked Questions
Is Euler Finance safe to use?
Euler Finance receives a C risk grade (45/100) from Hindenrank, where lower scores indicate lower risk. Moderate risk — recovering from a $197M exploit with a redesigned system that introduces different risks A lending protocol rebuilt from scratch after losing $197M in a 2023 hack (funds were later recovered). It holds $300M in deposits with a modular vault system that lets developers create custom lending markets. Its C+ grade reflects strong security spending against a proven track record of vulnerability.
What are the main risks of using Euler Finance?
The key risks identified for Euler Finance are: (1) This protocol was hacked for $197M in March 2023. The money was returned, but the incident proved the team's code can have critical flaws (2) Anyone can create a new lending vault and connect it to others. A single malicious or poorly built vault can drain money from legitimate ones it links to (3) Connected vaults can trigger chain-reaction liquidations. A crash in one vault forces selling that crashes the next, and so on down the line
What is Euler Finance's risk score breakdown?
Euler Finance scores 45/100 across eight risk dimensions: Mechanism Novelty: 3/15, Interaction Severity: 8/20, Oracle Surface: 3/10, Documentation Gaps: 2/10, Track Record: 12/15, Scale Exposure: 7/10, Regulatory Risk: 3/10, Vitality Risk: 7/10. The highest risk area is Track Record at 12/15.
How does Euler Finance compare to other Lending protocols?
Among 90 rated Lending protocols on Hindenrank, Euler Finance ranks #78 by safety (lowest risk score = safest). Its 45/100 risk score and C grade place it among the riskier Lending protocols.
Has Euler Finance ever been hacked or exploited?
Euler Finance scores 12/15 on the Track Record risk dimension, indicating some history of security incidents or exploits. Higher scores reflect more severe or frequent incidents. Review the full risk report for details.
Incident History
1incident|$197Mtotal losses
Last scanned 2026-02-22