ACINQ’s Eclair network patched critical Lightning payment and channel vulnerabilities that could allow peers to steal funds. The update to **v0.14.5** fixes flaws without requiring existing channels to close. Operators are urged to upgrade immediately to mitigate risks.
Bitcoin Lightning developers issue a second security update within five days to address vulnerabilities in the network. The patches aim to prevent malicious nodes from exploiting newly identified flaws, highlighting ongoing risks to the protocol’s security. Developers emphasize the urgency of applying updates to mitigate potential attacks.
ACINQ’s Eclair 0.14.3 release, issued September 14, 2026, patches three peer-triggered vulnerabilities in Bitcoin Lightning that create potential fund-loss risks during cooperative channel closures. The flaws also affect splicing and on-the-fly funding, and ACINQ recommends that node operators upgrade.
