🛠️ Bitcoin Core discloses three patched security flaws, including a high-severity mining bug
Bitcoin Core has publicly disclosed three vulnerabilities, all of which were already fixed in releases shipped in October 2025.
The high-severity bug (CVE-2025-62861) hit versions 28.0-28.2 and 29.0-29.1: after a chain reorganization it could leave the mempool inconsistent, and affected miners had to restart their nodes before they could build valid block templates again.
Two medium-severity flaws let a malicious peer delay block processing by up to 10 minutes via compact blocks, and gave whitelist permissions to incoming Tor peers on some configurations. Bitcoin Core said "thousands" of reachable mainnet nodes had been whitelisting incoming Tor connections.
⭐ No funds were at risk and the fixes are out, but node operators and miners on older versions should make sure they run Bitcoin Core 30.0 or 29.2+, a reminder of how much network reliability depends on keeping infrastructure updated.
#Bitcoin #BTC #BitcoinCore #Security
Bitcoin Core has publicly disclosed three vulnerabilities, all of which were already fixed in releases shipped in October 2025.
The high-severity bug (CVE-2025-62861) hit versions 28.0-28.2 and 29.0-29.1: after a chain reorganization it could leave the mempool inconsistent, and affected miners had to restart their nodes before they could build valid block templates again.
Two medium-severity flaws let a malicious peer delay block processing by up to 10 minutes via compact blocks, and gave whitelist permissions to incoming Tor peers on some configurations. Bitcoin Core said "thousands" of reachable mainnet nodes had been whitelisting incoming Tor connections.
⭐ No funds were at risk and the fixes are out, but node operators and miners on older versions should make sure they run Bitcoin Core 30.0 or 29.2+, a reminder of how much network reliability depends on keeping infrastructure updated.
#Bitcoin #BTC #BitcoinCore #Security
