{"cve":"CVE-2020-26895","nvd":{"published":"2020-10-21T02:15:12.660","modified":"2026-06-17T03:08:29.033","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-354"],"references":["https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4","https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.html","https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002858.html","https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4","https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.html"],"products":["lightning_network_daemon_project:lightning_network_daemon"],"source":"nvd","synced_at":"2026-10-19T21:09:53.489947993+00:00"},"epss":{"cve":"CVE-2020-26895","score":0.00707,"percentile":0.53423,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}