According to CoinMeta, the Core Lightning team has issued a security warning, reminding Bitcoin Lightning Network node operators to upgrade immediately as attackers are targeting systems still running version 26.06.7 or earlier. Core Lightning strongly advises affected operators to migrate to the latest version as soon as possible. The team has not yet disclosed the specific vulnerabilities that the attackers are targeting or the types of attacks that unpatched nodes may suffer. This warning comes after a series of security updates, as Core Lightning developers have identified multiple vulnerabilities since August.