CVE-2021-41591 json
ACINQ Eclair before 0.6.3 allows loss of funds because of dust HTLC exposure.
published 2021-10-04 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-28605
- cvss
- 9.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
ACINQ Eclair before 0.6.3 allows loss of funds because of dust HTLC exposure.
Patch / fix
Exploit prediction
1.70% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- lists.linuxfoundation.org https://lists.linuxfoundation.org/pipermail/lightning-dev/2021-October/003257.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
References
-
github.com
/ACINQ/eclair/pull/1985
patch, third-party-advisory
-
lists.linuxfoundation.org
/pipermail/lightning-dev/2021-October/003257.html
exploit, vendor-advisory
-
lists.linuxfoundation.org
/pipermail/lightning-dev/2020-May/002714.html
mailing-list, vendor-advisory
-
bitcoinmagazine.com
/technical/good-griefing-a-lingering-vulnerability-on-lightning-network-that-still-needs-fixing
press/media-coverage
Sources
- CVE List CVE-2021-41591
- NVD CVE-2021-41591
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