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Ostium's Oracle Signer Key Signed A Future-Dated Report, Looped It 20 Times, Drained $24M From The OLP Vault

An attacker with Ostium's oracle signer key submitted a future-dated price report through the PriceUpKeep Forwarder, looped ~20 delegated trades, and drained roughly $24M from the OLP vault. TVL fell from $32.7M to $9M. The smart contracts did exactly what they were told.

USDCETHARBostiumarbitrumJul 23, 2026

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