Lava Hack

TOTAL LOST $340K
Low Calculation Error in Liquidation Engine / Flash Loan Attack arbitrum

Summarize with AI

Affected Chain arbitrum Incident surface
Recovered - No recovery reported
All-Time Rank #1112 By amount stolen
Protocol Type Lending Target category

Incident Overview

LavaLending experienced a flash loan exploit resulting in the theft of approximately $340K worth of various cryptocurrencies.

LavaLending fell victim to a flash loan exploit, resulting in the unauthorized transfer of funds totaling approximately $340K. The stolen cryptocurrencies include 60,349 USDT, 8.5 wstETH, 96,215 UDSC.e, 77,477 USDC, and 20.3 ETH. These funds were sent to the address 0xfbcdb6ce…0a6428 on the Arbitrum network.

In response to the incident, all lending markets on the platform have been temporarily paused while an investigation is conducted to determine the extent of the breach and identify the perpetrators.

Exploiter:

https://arbiscan.io/address/0x851aa754…530418

https://arbiscan.io/address/0xfbcdb6ce…0a6428

Expliter contract:

https://arbiscan.io/address/0x42fae472…c88988

https://arbiscan.io/address/0x3e52c217…e9fda1

Incident Report

Protocol / Project Lava
Date of Incident
Affected Chain(s) arbitrum
Attack Technique Calculation Error in Liquidation Engine / Flash Loan Attack
Classification Protocol Logic / Borrowing and Lending
Primary Source View Post-Mortem

Protocol Information

Protocol Type Lending
Smart Contract Language Solidity
Official Website www.lava.ag/
Protocol Twitter/X @LavaLending
Team Anonymous
Source Code Unverified

Market Context at Time of Hack

Token Categories
Memes Solana Ecosystem AI Memes Pump Fun Ecosystem Binance Alpha Binance Ecosystem Binance Listing

What the Attacker Needed to Succeed

Understanding the prerequisites for this type of attack helps auditors identify protocols that are most at risk and helps developers build better defenses.

Technical Knowledge Deep understanding of calculation error in liquidation engine / flash loan attack and Solidity and EVM internals
Capital Required Flash loan capital (borrowed atomically, zero upfront cost)
On-Chain Access Ability to interact with arbitrum smart contracts and deploy a custom exploit contract
Protocol Analysis Identification of the exploitable vulnerability in Lava's contract logic - root cause: protocol logic / borrowing and lending
Execution Speed Precise transaction ordering and timing to exploit the vulnerability within a single atomic block
Obfuscation Plan A strategy to launder and move stolen funds - typically through mixers, cross-chain bridges, or decentralized DEX swaps to resist tracing

What Auditors Should Check

Could this have been caught in audit? Yes — skilled auditors routinely flag Calculation Error in Liquidation Engine / Flash Loan Attack vulnerabilities in code review

If you're auditing a protocol with similar architecture to Lava, these are the critical security checks that could have prevented this incident (March 2024).

  • Verify all logic paths related to Calculation Error in Liquidation Engine / Flash Loan Attack are guarded by proper access controls and input validation - see the Flash Loans Attacks attack class for patterns
  • Review privileged functions (owner, admin, governance) for potential abuse vectors - centralization risks should be documented and bounded with timelocks or multi-sigs

Master these auditing techniques with hands-on labs and real exploit scenarios in the Smart Contract Hacking course.

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Related Attack Classes

The technique used in this hack maps to these vulnerability classes in our security curriculum:

See all Flash Loans Attacks examples →

Sources & References

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