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Hack history / 2023 / Hack or exploit

Midas Capital

Hack or exploit on Jun 17, 2023 · Rounding Error

IN REVIEWSOURCES DISAGREE ON DATE OR LOSS · 4 SOURCES
Lost
$600K
sources: $340K to $600K
Returned
none listed
as the sources state it
Rank
#1,085
among thefts by dollars lost

What happened

On June 17, 2023, Midas Capital's HAY/BUSD pool on BSC was exploited for $340K-$600K via a rounding error in cToken redemption logic. The attacker crafted positions that rounded down to 1 wei, repeatedly exploited the error with minimal deposits and flash-loaned ANKR collateral to withdraw disproportionately large sums.

In review: sources disagree on the loss.

Details

Date
Jun 17, 2023
Kind
Hack or exploit
Method
Rounding Error
How in
Smart contract bug
Target
DeFi protocol
Chains
BNB Chain
Audit (rekt.news)
out of scope

Reported by

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Cite this pageSwanBluechip, "Midas Capital hack, Jun 17, 2023: $600K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht8af08fe470/ (data as of 2026-10-31).
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