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Critical severity9.4NVD Advisory· Published Oct 4, 2021· Updated Jun 17, 2026

CVE-2021-41591

CVE-2021-41591

Description

ACINQ Eclair before 0.6.3 allows loss of funds because of dust HTLC exposure.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3

ACINQ/eclaircpe-rescue3 versions
(expand)+ 2 more
- (no CPE)
- cpe:2.3:a:acinq:eclair:*:*:*:*:*:*:*:*range: <0.6.3
- (no CPE)range: <0.6.3

Patches

Vulnerability mechanics

References

4

github.com/ACINQ/eclair/pull/1985nvdPatchThird Party Advisory
lists.linuxfoundation.org/pipermail/lightning-dev/2021-October/003257.htmlnvdExploitVendor Advisory
lists.linuxfoundation.org/pipermail/lightning-dev/2020-May/002714.htmlnvdMailing ListVendor Advisory
bitcoinmagazine.com/technical/good-griefing-a-lingering-vulnerability-on-lightning-network-that-still-needs-fixingnvdPress/Media Coverage

News mentions

0

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