The failure of Optimism/Arbitrum sequencer can lead users to be liquidated
Summary
The failure of Optimism/Arbitrum sequencer can lead users to be liquidated.
Vulnerability Details
During a sequencer downtime on Optimism/Arbitrum, users are unable to act on their health factor due to the failure of Optimism/Arbitrum sequencer.
Impact
The vulnerability results in users being stopped from depositing or burnng, and users are likely to suffer mass liquidations when sequencer is available again.
Tools Used
Manual Review
Recommendations
To address this issue, it is recommended to gives users a grace period once the sequencer comes back online, so users can avoid liquidation by depositing more collaterals or burning more DCS tokens.
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