Bitcoin Core’s new fix closes gap that could redirect funds without stealing keys
Bitcoin Core's latest update addresses a vulnerability where missing SIGHASH_SINGLE requests could leave recipients unbound, potentially allowing funds to be redirected without key theft. While no specific fixed-release destination has been confirmed yet, this patch aims to close a significant security gap.
Bitcoin Core's latest update addresses a vulnerability where missing SIGHASH_SINGLE requests could leave recipients unbound, potentially allowing funds to be redirected without key theft. While no specific fixed-release destination has been confirmed yet, this patch aims to close a significant security gap.
Sources
- CryptoSlate — Bitcoin Core’s new fix closes gap that could redirect funds without stealing keys
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The new code moves the check into Bitcoin Core’s shared signature-creation logic, preventing affected legacy and SegWit v0 inputs from being signed while allowing other…
That leaves wallet providers and hardware-signing integrations with the more immediate decision: review their own handling of SIGHASH_SINGLE requests rather than waiting for a Bitcoin…
BitGoose 深度分析
AI analysisThis update addresses a critical security flaw in PSBTs, ensuring that signatures are cryptographically bound to the intended transaction outputs. This change reinforces the integrity of transactions and reduces the risk of unauthorized changes being made by third parties.
This change will significantly enhance security for Bitcoin transactions using PSBTs, making it harder for malicious actors to manipulate transaction outputs without the user's consent.
- Review of wallet providers' handling of SIGHASH_SINGLE requests
- Confirmation of a production release containing the safeguard
- Implementation of similar protections in hardware signing integrations
BitGoose 独立分析，依据下列来源；这部分是推断，而非来源已经报道或交叉证实的事实。 Model: qwen2.5:7b