Hack history / 2026 / Hack or exploit
Ocean Protocol
Hack or exploit on Jun 25, 2026 · Deposit Logic Flaw
ATTACK TX CONFIRMED ON CHAINSOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$128K
dollars at the time
Returned
none listed
as the sources state it
Rank
#1,638
among thefts by dollars lost
What happened
Ocean Protocol's SideStaking-managed BPool clones on Polygon were exploited via asymmetric join/exit math. An attacker flash-borrowed mOCEAN tokens, cycled them through eight BPool clones, and extracted a net profit by exploiting the single-sided liquidity operation calculations.
Details
- Date
- Jun 25, 2026
- Kind
- Hack or exploit
- Method
- Deposit Logic Flaw
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- Polygon
Reported by
Cite this page
SwanBluechip, "Ocean Protocol hack, Jun 25, 2026: $128K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht28cbd812ee/ (data as of 2026-10-31).