Hacking News
Core Lightning Nodes Can Keep Crashing After Upgrade Due to Malicious Announcement
Core Lightning, software for Bitcoin's Lightning payment network, has a flaw that can cause nodes to crash on restart after an upgrade. Researcher Nishant Bansal disclosed that versions v25.02 through v26.04 are affected. The issue arises from a malformed channel announcement that remains on disk, leading to a crash. A preventive fix was available since April, but the patch only blocks new triggers. Operators must manually remove the stored record to restore the node.