Bitcoin Core developers published three security advisories on Tuesday, November 10, covering vulnerabilities that had been fixed for more than a year. The most serious, CVE-2025-62861, could prevent miners from building valid blocks after a chain reorganization until the software was restarted. CVE-2025-62860 caused all incoming Tor connections to be treated as trusted when the proxy address was included in a whitelist, exposing thousands of nodes on the main network. CVE-2025-62859 allowed a malicious peer to halt a victim’s block processing for ten minutes by being the first to announce a compact block. Bitcoin Core released fixes in versions 28.3, 29.2 and 30.0, while version 32.1, published on October 27, is the latest stable release with all the corrections.
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