CVE-2020-26895
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.
Does this matter?
Lower severity and a low EPSS score (0.71%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 0.71% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-354
- Affected
- lightning network daemon project/lightning network daemon
- Source
- cve@mitre.org
References
- https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4Third Party Advisory
- https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.htmlMailing List, Third Party Advisory
- https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002858.htmlMailing List, Third Party Advisory
- https://gist.github.com/ariard/fb432a9d2cd3ba24fdc18ccc8c5c6eb4Third Party Advisory
- https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002856.htmlMailing List, Third Party Advisory
- https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002858.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.