Is Euler Finance Safe?

|Lending
C

Risk Grade: C (45/100)

Euler Finance is rated as elevated risk — multiple novel mechanisms and notable interaction risks.

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.

TVL

$512M

Mechanisms

7

Interactions

5

Value Grade

C+

Key Risks for Euler Finance Users

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

Top Risk Factors

  • History of $197M flash loan exploit in March 2023 (funds recovered) demonstrates protocol-level vulnerability precedent
  • Modular Euler Vault Kit allows permissionless vault creation, expanding smart contract attack surface
  • Ethereum Vault Connector linking arbitrary ERC-4626 vaults introduces cross-vault contagion vectors

Risk Score Breakdown

Euler Finance's highest risk area is Track Record (12/15). Here's how each dimension contributes to the overall 45/100 score:

Mechanism Novelty3/15
Interaction Severity8/20
Oracle Surface3/10
Documentation Gaps2/10
Track Record12/15
Scale Exposure7/10
Regulatory Risk3/10
Vitality Risk7/10

Read the Full Euler Finance Risk Report

This protocol has 2 collapse scenarios. 3 high-severity interaction risks identified. See the full mechanism classification, interaction matrix, and deep-dive recommendations.

View Full Report →

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Ratings use Hindenrank's eight-dimension risk rubric. Lower score = lower risk. Grades range from A (safest) to F (riskiest). This is not financial advice.