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Onyx Protocol

Nov 1, 2023

$2.1M
Lost
$2.1M
Recovered
$0
Net loss
$2.1M
Unrecovered0% recovered

1M. An attacker used a 4,000 ETH flashloan, swapped to PEPE, and donated to inflate the new oPEPE market's exchange rate, exploiting rounding errors in redemption logic.

How the exploit worked

View reproducible PoC

Precission Loss Vulnerability.

Lost: ~$2M

Source: DeFiHackLabs (SunWeb3Sec)

Target
DeFi
Classification
Token & Share Accounting
Technique
Donation Attack
Attribution
Unknown
Chains
Ethereum

Event timeline

  1. Nov 1, 2023
    Exploit executed — $2.1M drained via donation attack
  2. Attributed to Unknown
  3. Recovery status Unrecovered 0%

Data credits

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