October 9, 2026
Core Lightning has released version 26.06.9 to address severe security flaws, payment contract vulnerabilities, and a regression causing traffic delays on busy Bitcoin Lightning payment nodes.October 2, 2026
A newly revealed vulnerability in Eclair Bitcoin Lightning nodes allows unfunded channels to trigger continuous restart loops without requiring attackers to spend on-chain Bitcoin, prompting developers to issue security patches.October 2, 2026
Electrum released a security update to address a Lightning backup defect, though users with non-deterministic keys and anchor channels must generate new backup files to prevent fund loss after remote closures.Work with the Cryptologer team and make an impact.