A bug allows miners to corrupt undo data, causing node shutdowns under specific conditions. Affected nodes on 32-bit or Windows systems fail during restarts. A fix was released in Bitcoin Core 29.5 and later versions.
https://bitcoincore.org/en/2026/10/28/disclose-undo-overflow/
#bitcoin #core #security
https://bitcoincore.org/en/2026/10/28/disclose-undo-overflow/
#bitcoin #core #security
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