Espresso Systems: A vulnerability in the Espresso sequencer consensus supporting the Cortado testnet has been discovered and fixed

According to official news, blockchain infrastructure company Espresso Systems announced that it has discovered and fixed some vulnerabilities in the Espresso Sequencer consensus supporting the Cortado testnet. The testnet has been shut down while the team prepares and deploys fixes. The above vulnerability is contained in Espresso Sequencer and is not related to Vienna deployed by Caldera OP Stack.