Makina Hack

TOTAL LOST $5.0M
Medium Flashloan Price Oracle Attack / Flash Loan Attack ethereum

Summarize with AI

Affected Chain ethereum Incident surface
Recovered $2.7M 54.0% returned
All-Time Rank #425 By amount stolen
Auditors 1 Prior security audit

Incident Overview

On January 20, 2026, Makina Finance suffered a $5 million exploit through oracle manipulation when an attacker used a 280 million USDC flash loan to manipulate MachineShareOracle price data, draining the DUSD/USDC Curve pool, with the majority ($4.14M) frontrun and captured by an MEV builder.

The attacker obtained a flash loan of 280 million USDC and used it to artificially manipulate price data in the MachineShareOracle, which the Makina Finance protocol relied upon for accurate pricing. By distorting the oracle's price feed, the attacker created a discrepancy that allowed them to drain the DUSD/USDC stablecoin pool on Curve Finance. However, an MEV (Maximal Extractable Value) builder detected the exploit transaction in the mempool and frontran the attacker, intercepting approximately $4.14 million of the stolen funds before they reached the attacker's addresses.

The remaining stolen assets, totaling approximately $880,000 to $3.3 million, were distributed to the attacker's wallets. CertiK detected the exploit and flagged the suspicious activity, prompting Makina Finance to activate security mode across all Machines as a precautionary measure. The team confirmed the issue was isolated to DUSD liquidity provider positions on Curve, with underlying assets held in Machines remaining unaffected, and strongly advised LPs in the DUSD Curve pool to withdraw their liquidity immediately.

Attack Transaction:

https://etherscan.io/tx/0x569733b8…0651f5

Incident Report

Protocol / Project Makina
Date of Incident
Affected Chain(s) ethereum
Attack Technique Flashloan Price Oracle Attack / Flash Loan Attack
Classification Protocol Logic / Yield Aggregator
Primary Source View Post-Mortem

Protocol Information

Protocol Type Onchain Capital Allocator
Smart Contract Language Solidity
Official Website makina.finance/
Protocol Twitter/X @makinafi
Team Anonymous
Source Code Unverified

Market Context at Time of Hack

Token Categories
Decentralized Finance (DeFi) Yield Optimizer

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 flashloan price oracle attack / 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 ethereum smart contracts and deploy a custom exploit contract
Protocol Analysis Identification of the exploitable vulnerability in Makina's contract logic - root cause: protocol logic / yield aggregator
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 Flashloan Price Oracle Attack / Flash Loan Attack vulnerabilities in code review
Audited by Audit Report 1 — still lost $5.0M. Prior audits don't guarantee safety, especially after post-audit code changes.

If you're auditing a protocol with similar architecture to Makina, these are the critical security checks that could have prevented this incident (January 2026).

  • Verify all logic paths related to Flashloan Price Oracle Attack / Flash Loan Attack are guarded by proper access controls and input validation - see the Flash Loans Attacks attack class for patterns
  • Audit oracle price feeds for manipulation risks - ensure time-weighted average prices (TWAPs) or multi-source aggregators are used, not spot prices
  • 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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Funds Recovery

54.0%

Recovered

$2.7M

Net Loss

2300000

Security Audit History

Related Attack Classes

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

See all Flash Loans Attacks examples →

Proof-of-Concept Exploits

1 PoC available

Sources & References

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