Ethereum Delays Glamsterdam Testing After 13 Contracts Trigger Concerns

Ethereum developers have postponed the Glamsterdam upgrade on the Hoodi testnet after security researchers discovered a flaw that could turn temporary smart contract failures into permanent losses of functionality. Chainsecurity identified 13 deployed contracts with potentially vulnerable behavior. The Oct. 26 activation has been canceled, putting Ethereum’s tentative December mainnet upgrade window in doubt while developers investigate. Ethereum’s next major upgrade has hit an unexpected obstacle. Security researchers discovered that proposed changes to how the blockchain charges transaction fees can cause certain smart contracts to permanently record failures that previously would have been reversible. Chainsecurity identified 13 deployed contracts exhibiting potentially dangerous behavior, prompting developers to cancel Glamsterdam’s Oct. 26 activation on the Hoodi test network.

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