{"id":"CVE-2020-26895","aliases":["EUVD-2020-19425"],"status":"published","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.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00707,"percentile":0.53731,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-354"],"published":"2020-10-21T02:00:23Z","modified":"2026-10-24T10:30:19Z","products":[{"vendor":"lightning_network_daemon_project","product":"lightning_network_daemon"}],"references":[{"url":"https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.html","tags":["x_refsource_MISC","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002858.html","tags":["x_refsource_MISC","x_transferred","Mailing List","Third Party Advisory","advisory"]}],"sources":{"cve":[{"id":"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.","status":"published","published":"2020-10-21T02:00:23Z","modified":"2024-08-04T16:03:22.816Z","updated_at":"2026-11-02T14:35:46.129376Z"}],"euvd":[{"id":"EUVD-2020-19425","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.","status":"published","published":"2020-10-21T02:00:23Z","modified":"2024-08-04T16:03:22Z","updated_at":"2026-11-03T03:07:14.653267Z"}],"nvd":[{"id":"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.","status":"published","published":"2020-10-21T02:15:12.66Z","modified":"2026-06-17T03:08:29.033Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-354"],"updated_at":"2026-11-02T14:06:20.704992Z"}],"osv":[{"id":"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.","status":"published","published":"2020-10-21T02:15:12.66Z","modified":"2026-10-24T10:30:19.876256065Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:16.248747Z"}]}}