Hack history / 2021 / Hack or exploit
BurgerSwap
Hack or exploit on May 27, 2021 · Reentrancy
ATTACK TX CONFIRMED ON CHAININ REVIEWSOURCES AGREE ON DATE AND LOSS · 5 SOURCES
Lost
$7.2M
dollars at the time
Returned
none listed
as the sources state it
Rank
#378
among thefts by dollars lost
What happened
BurgerSwap exploited May 28, 2021 for $7.2M in BURGER, WBNB, and USDC. Missing code line in Uniswap V2 fork enabled reentrancy. Attacker created a fake token to manipulate price, then executed profitable swaps funded by a PancakeSwap flashloan.
In review: possible duplicate within one source.
Details
- Date
- May 27, 2021
- Kind
- Hack or exploit
- Method
- Reentrancy
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- BNB Chain
- Audit (rekt.news)
- unaudited
Related incidents
BurgerSwap 2021 · Hack or exploit · undisclosed
Grim Finance 2021 · Hack or exploit · $30M
CREAM Lending 2021 · Hack or exploit · $18.8M
flash.sx / vaults.sx 2021 · Hack or exploit · $13M
Gamma 2021 · Hack or exploit · $8.2M
Grim Finance 2021 · Hack or exploit · $30M
CREAM Lending 2021 · Hack or exploit · $18.8M
flash.sx / vaults.sx 2021 · Hack or exploit · $13M
Gamma 2021 · Hack or exploit · $8.2M
Cite this page
SwanBluechip, "BurgerSwap hack, May 27, 2021: $7.2M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/htf9caa0f631/ (data as of 2026-11-01).