Bitcoin Core warns of a potential financial loss vulnerability during wallet migrations in versions 30 and 30.1.

[Bitcoin Core Warns of a Vulnerable Vulnerability in Wallet Migration for Versions 30 and 30.1] According to Mars Finance, market sources indicate that Bitcoin Core has issued a notice stating that versions 30 and 30.1 contain a serious vulnerability when migrating older (BDB format) wallets. In rare cases, this vulnerability could lead to the accidental deletion of all wallet files on a node, potentially resulting in permanent loss of funds if no backups are available. This only affects the migration process of legacy wallets; regular use and existing wallets are unaffected. The official release date for version 30.2 will be a fix for this vulnerability; please do not perform wallet migrations until then.