Urgent Ethereum node patch issued due to hidden security flaws

Ethereum consensus client Lighthouse released a security patch on Nov. 9 and urged operators of all its beacon nodes to upgrade as soon as possible. The v8.3.3 release makes that work a high priority for users who stake and those who do not, but the release notice rates validator-client upgrades as low priority for staking users. As a consensus client , Lighthouse connects with other clients in Ethereum's proof-of-stake network . Its beacon node works with an execution engine to validate transactions in blocks, while the validator client connects to the beacon node and manages keys, according to the Lighthouse Book . Operators can also run a beacon node without a validator client.

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