Ethereum developers patched a flaw in the upcoming Glamsterdam upgrade that could have let an operator withdraw ETH that staking services intended for new validators. The bug arose because builder and validator deposits could share a public key, so both deposits might be credited to the builder, leaving the staking service unable to produce the proof needed to recover its funds. Researcher avsetsin said the findings were conditional code issues, not confirmed live exploits, and that existing checks could block the attack; no losses have been reported. Developers first rejected the fix on Oct. 19 for lack of client support, then reopened it, added tests on Oct. 23, and merged it on Monday. Under the new rules, pending deposits are sorted by withdrawal credentials so validator deposits stay with validators, but client teams must still implement the change, and Glamsterdam's Oct. 26 launch on the Hoodi test network was postponed.
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ETH/USDT
• NeutralEthereum
Relevance: low
| Market | Crypto |
|---|---|
| Exchange | Binance |
| Sector | Layer 1 |
| Market cap | $285.6B |
| Close on 10/26/2026 | 2,324.55 |
| Change that session | -0.23% |
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