TechBitcoin Core fix blocks fund redirection without private-key theft

Bitcoin Core has added a safeguard against signing partially signed Bitcoin transactions whose signatures may not remain tied to the recipient approved by the user. The flaw involves SIGHASH_SINGLE under specific missing-output conditions and could leave a changed destination validly signed without exposing private keys. The fix is on the development branch, but no production release containing it had been confirmed by Oct. 4.

BitcoinBitcoin CorePSBTwallet security

CCryptoSlate★★☆☆☆2026-10-04 19:40Original