Forex (euro) prices are used outside market hours that leads to stale prices
Summary
When Forex prices from Chainlink are used outside of market hours, it leads to a reliance on stale or outdated price data.
Vulnerability Details
Euro price is updated only during Forex market hours https://docs.chain.link/data-feeds/price-feeds/addresses/?network=arbitrum&page=1&search=eur
Asset name:
Euro
Asset type:
Forex
Market hours:
Forex
Assets on the Forex markets are traded only during defined market hours. Additionally, some currencies might trade only during local banking hours.
Chainlink strictly advice in there docs:
Do not use Forex feeds outside market hours for the specific currency.
Impact
Too much euros will be burned during liquidation or too much rewards will be given to a stacker which is essentially loss of funds
Tools Used
Manual review
Recommended Mitigation Steps
Consider using a different data feed that will work during non-market hours to always have a fresh price.
Lead Judging Commences
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