On April 2022, Rari Capital/Fei Protocol was exploited in a flash loan attack, resulting in approximately $80 in losses. That makes the Rari Capital/Fei Protocol exploit the 452nd largest DeFi incident out of 690 documented in our archive.
Attack Mechanics: How the Rari Capital/Fei Protocol Flash Loan Attack Played Out
Exploit Class Applied to Rari Capital/Fei Protocol
The Rari Capital/Fei Protocol incident on April 30, 2022 is classified as a Flash Loan Attack. Attackers borrow huge amounts via uncollateralised single-transaction loans and manipulate protocol state before repaying in the same block. In the full archive, Rari Capital/Fei Protocol is 1 of 27 documented flash loan attack incidents.
Rari Capital/Fei Protocol in Context
At $80, the Rari Capital/Fei Protocol exploit is a minor (<$1M) event compared to the largest same-class incident in our archive — PolterFinance (2024) at $7M.
Prior Flash Loan Attack Before Rari Capital/Fei Protocol
The nearest flash loan attack incident before Rari Capital/Fei Protocol was Wiener DOGE, 6 days earlier on April 24, 2022. The same exploit class surfaced again within the flash loan attack attack surface.
Rari Capital/Fei Protocol Vulnerability Signature
The primary source categorises the Rari Capital/Fei Protocol exploit specifically as “Flashloan Attack + Reentrancy”. This narrower label is entity-specific: it reflects how the Rari Capital/Fei Protocol contract failed, rather than the broad flash loan attack pattern alone.
Impact & Recovery for Rari Capital/Fei Protocol
Rari Capital/Fei Protocol Loss Figure
The Rari Capital/Fei Protocol exploit caused $80 in losses — a minor (<$1M) incident and the 57th largest of 129 documented in 2022.
Where Rari Capital/Fei Protocol Sits Among Flash Loan Attack Attacks
Ranked by loss size, Rari Capital/Fei Protocol is the 16th largest of 27 flash loan attack incidents documented. That puts the Rari Capital/Fei Protocol loss below the class average of $577.3K.
Timeline Since the Rari Capital/Fei Protocol Incident
The Rari Capital/Fei Protocol exploit occurred 4 years ago (1,445 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.
Primary Reference for Rari Capital/Fei Protocol
Public post-mortem / on-chain analysis for the Rari Capital/Fei Protocol incident: view source.
FAQ
How much did Rari Capital/Fei Protocol lose?
The Rari Capital/Fei Protocol exploit in April 2022 resulted in $80 in losses — the 57th largest of 129 DeFi incidents that year.
When did the Rari Capital/Fei Protocol hack happen?
The Rari Capital/Fei Protocol exploit was recorded on April 30, 2022 — 1,445 days ago.
What type of exploit hit Rari Capital/Fei Protocol?
The Rari Capital/Fei Protocol incident is classified as a Flash Loan Attack. Attackers borrow huge amounts via uncollateralised single-transaction loans and manipulate protocol state before repaying in the same block.
How common is the Flash Loan Attack pattern seen at Rari Capital/Fei Protocol?
Our archive contains 27 documented flash loan attack incidents. The Rari Capital/Fei Protocol incident is one of them.
How does Rari Capital/Fei Protocol compare to the largest Flash Loan Attack attack?
The largest flash loan attack incident in our archive is PolterFinance (2024) at $7M. The Rari Capital/Fei Protocol loss is $80.
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