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Hack history / 2023 / Hack or exploit

Paribus

Hack or exploit on Apr 11, 2023 · Reentrancy

ATTACK TX CONFIRMED ON CHAINSOURCES DISAGREE ON DATE OR LOSS · 3 SOURCES
Lost
$100K
sources: $68K to $100K
Returned
none listed
as the sources state it
Rank
#1,723
among thefts by dollars lost

What happened

Paribus was exploited through a reentrancy vulnerability in a Compound V2 fork, where the transfer occurred before storage updates. An attacker used flash loans and the reentrant redeem function to borrow against collateral twice, draining USDT, WBTC, and ETH.

Details

Date
Apr 11, 2023
Kind
Hack or exploit
Method
Reentrancy
How in
Smart contract bug
Target
DeFi protocol
Chains
Arbitrum

Reported by

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Cite this pageSwanBluechip, "Paribus hack, Apr 11, 2023: $100K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/hted5b5d361d/ (data as of 2026-10-31).
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