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CVE-2020-26895

Description

Prior to 0.10.0-beta, LND (Lightning Network Daemon) would have accepted a counterparty high-S signature and broadcast tx-relay invalid local commitment/HTLC transactions. This can be exploited by any peer with an open channel regardless of the victim situation (e.g., routing node, payment-receiver, or payment-sender). The impact is a loss of funds in certain situations.

POC

Reference

No PoCs from references.

Github

- https://github.com/ARPSyndicate/cvemon

- https://github.com/uvhw/conchimgiangnang