Bitcoin Core disclosed and patched three vulnerabilities affecting its software, including a high-severity flaw related to block template creation. According to the security advisory, a chain reorganization could cause transactions to be erroneously evicted and corrupt a node’s mempool, preventing miners from creating new blocks until they restarted. Two other flaws could stall block processing through manipulated witness data or grant inbound Tor connections whitelist privileges, affecting availability and privacy. None of the vulnerabilities was rated critical, and no exploitation was reported. Node operators are urged to use the latest software release, while Bitcoin Core has also expanded its security policy to address vulnerabilities that are easily discoverable using artificial intelligence.
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