{"api_version":"1","generated_at":"2026-07-23T12:18:53+00:00","cve":"CVE-2020-26895","urls":{"html":"https://cve.report/CVE-2020-26895","api":"https://cve.report/api/cve/CVE-2020-26895.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-26895","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-26895"},"summary":{"title":"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.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2020-10-21 02:15:00","updated_at":"2020-10-30 19:17:00"},"problem_types":["CWE-354"],"metrics":[],"references":[{"url":"https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.html","name":"https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.html","refsource":"MISC","tags":["Mailing List","Third Party Advisory"],"title":"[Lightning-dev] Full Disclosure: CVE-2020-26895 LND \"Hodl my\tShitsig\"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002858.html","name":"https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002858.html","refsource":"MISC","tags":["Mailing List","Third Party Advisory"],"title":"[Lightning-dev] CVE-2020-26895: LND Low-S Tx-Relay Standardness","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4","name":"https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4","refsource":"MISC","tags":["Third Party Advisory"],"title":"public-report-high-s.txt · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-26895","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26895","name":"NVD vulnerability 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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."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4","refsource":"MISC","name":"https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4"},{"url":"https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.html","refsource":"MISC","name":"https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.html"},{"url":"https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002858.html","refsource":"MISC","name":"https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002858.html"}]}},"nvd":{"publishedDate":"2020-10-21 02:15:00","lastModifiedDate":"2020-10-30 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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.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"26895","Ordinal":"2","NoteData":"2020-10-20","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"26895","Ordinal":"3","NoteData":"2020-10-20","Type":"Other","Title":"Modified"}]}}}