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Eclair merges Lightning fixes aimed at limiting fee attacks on channel funding
The repairs merged into Eclair’s master branch on Oct. 2 and Oct. 5, and they address malicious peer fee-bump demands during dual funding and splicing.
Eclair, ACINQ's Lightning node software, merged two repairs intended to close Lightning protection gaps that could expose nodes to excessive mining fees during channel funding and splicing, CryptoSlate reports.
One fix limits a peer's replace-by-fee, or RBF, fee-bump demands when Eclair contributes funds, where CryptoSlate says Eclair previously had no upper bound or fee budget for that path. The other checks transactions from a potentially compromised Bitcoin backend while Eclair retains the signing keys, reducing the risk that backend issues translate into bad outcomes.
The two October fixes were merged into Eclair's master branch on Oct. 2 and Oct. 5. As of Oct. 12, the release page still listed version v0.14.3 from September as the latest, meaning the fixes were delivered after that packaged release, according to CryptoSlate.
Bitcoin Optech's Oct. 9 newsletter highlighted both changes as protection against attacks during dual funding and splicing, the outlet added. CryptoSlate says the potential loss would be paid as fees to miners.
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