What happened
On July 15, 2026, Ostium said its LP vault lost 23,752,746 USDC after compromised off-chain price-reporting infrastructure fed manipulated reports into the protocol.
Technical Root Cause
Ostium attributed the incident to compromised off-chain price-reporting infrastructure. The project had not publicly identified the precise compromised component or bypass path.
Case & protocol details
Classification
Other / Key Compromise
Protocol Type
Derivatives
Smart Contract Language
Solidity
Official Website
www.ostium.com/
Protocol Twitter/X
@Opium_Network
Attack Timeline
Manipulated price reports were accepted, allowing the attacker to open and immediately close large positions for artificial profit against the LP vault. Ostium said trader collateral was unaffected and later reopened trading in guarded stages.
Evidence & learning
Sources and on-chain records
- report Report x.com
- report Report x.com
- analysis Ostium incident update x.com
- analysis Ostium guarded relaunch update x.com
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