Ethereum confirms Glamsterdam dates, but warns ‘fake’ builders could stall the chain
Free test ether lets fake builders outbid rivals and withhold transaction payloads, while client teams get half the usual review time before Sepolia.
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Summary
- Ethereum developers warned that attackers could exploit free test ether and disposable builder identities to win Sepolia block auctions and withhold transaction payloads during Glamsterdam testing.
- The attack would not threaten mainnet funds, but it could disrupt infrastructure testing and highlights the need for clients to identify and reject malicious builders.
- Sepolia’s public test is scheduled for Oct. 6, giving client teams a shortened release window, while Hoodi testing is tentatively set for Oct. 27 and mainnet activation remains unscheduled.
