Hack history / 2026 / Hack or exploit
LABUBU/OLPC
Hack or exploit on Jun 20, 2026 · Decimal Miscalculation
ATTACK TX CONFIRMED ON CHAININ REVIEWSOURCES AGREE ON DATE AND LOSS · 3 SOURCES
Lost
$1.1M
dollars at the time
Returned
none listed
as the sources state it
Rank
#892
among thefts by dollars lost
What happened
On June 20, 2026, a PancakeSwap V2 pool pairing OLPC and LABUBI on BNB Chain was exploited when the OLPC token's _update function had a maliciously configured decimalsValue parameter (7326680472586200649), causing massive unintended burns. This desynchronized cached reserves, allowing an attacker to drain ~$1.115M USDT via LABUBI swaps.
In review: attack tx contradicts the date.
Details
- Date
- Jun 20, 2026
- Kind
- Hack or exploit
- Method
- Decimal Miscalculation
- How in
- Smart contract bug
- Target
- Liquidity Pool
- Chains
- BNB Chain
Reported by
Related incidents
Cite this page
SwanBluechip, "LABUBU/OLPC hack, Jun 20, 2026: $1.1M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/htb1d60c2990/ (data as of 2026-11-01).