Osmosis Network Halted by Team; Here’s What Happened


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Vladislav Sopov

About $5 million of Osmosis DEX had been drained before emergency shutdown

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Osmosis blockchain, which hosts a decentralized cryptocurrency exchange (DEX) in Cosmos cross-chain ecosystem, was halted as community activists unveiled a critical vulnerability.

Osmosis DEX bug alllowed to withdraw deposits with 3x premium

Today, June 8, 2022, crypto enthusiasts from the official Reddit community of an Osmosis blockchain identified a critical vulnerability. Some of them managed to deposit $5 and withdraw $15 immediately.

At around 3:00 p.m. UTC, users started to explore this bug en masse. Namely, the USDC-OSMO pool was affected. An initial estimation suggests that¬†losses exceed $2.5 million before the network’s team decided to halt the blockchain.

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All operations were stopped¬†at block #4713064 “for emergency maintenance.” Most¬†likely, the vulnerability occured in the¬†v9 Nitrogen upgrade of Osmosis DEX codebase.

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At 7:00 a.m. UTC, the team of the network confirmed that the attack occurred and unveiled that the protocol has been drained for almost $5 million. The attackers thus failed to siphon all liquidity from Osmosis DEX pools.

Patch released, new system testing underway

Just an hour ago, the protocol’s team announced that the bug is fully identified and an emergency patch has been¬†written. However, the exact timeline of network recovery¬†is yet to be unveiled.

By press time, the team started closed testing of the blockchain; validators should be ready for the announcement of a restart coordination plan.

As estimated by the team, this may take a couple of days.

Decentralized cryptocurrency exchange Osmosis (OSMO) is one of the first mainstream projects of the Cosmos Hub. It was launched in mainnet¬†in mid-February¬†2021; its team also pioneered “superliquid staking”¬†concept.



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