# A High-Severity Bug Could Have Stalled Bitcoin Mining—Bitcoin Core Has a Fix

- URL: https://talkfuse.com/story/a-high-severity-bug-could-have-stalled-bitcoin-mining-bitcoin-core-has-a-fix/
- Published: 2026-11-11T16:58:57+00:00
- Updated: 2026-11-11T17:25:48+00:00
- Original publisher: Decrypt
- Original article: https://decrypt.co/383044/bitcoin-core-patches-bug-could-have-stalled-btc-mining
- Topics: Business, Crypto

## Key points

- Three Bitcoin Core vulnerabilities have been fixed.
- The most serious could halt mining on affected nodes.
- No exploitation was reported; operators should update.

## Summary

Bitcoin Core developers disclosed three fixed vulnerabilities in software used by most Bitcoin network nodes. The most serious could leave an affected miner unable to create block templates after a chain reorganisation, interrupting mining until the node was restarted.

The flaws also included a way for a peer to stall block processing and a privacy issue affecting some connections through Tor. None could steal coins, create unauthorised coins or cause a permanent network-wide split, and developers reported no evidence of exploitation. The fixes were released before the advisories, and node operators are advised to use the latest software.

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Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.