CVE-2021-41591

CRITICAL 9.4CVE-2021-41591 · Published 04/10/2021 · updated 17/06/2026

In short

CVE-2021-41591 is a CRITICAL (CVSS 9.4) vulnerability affecting eclair (acinq).
Chance of exploitation in the next 30 days (EPSS): 1.7%, higher than 77.4% of all vulnerabilities.
Fix: update to 0.6.3 or later.

Package	Affected versions	Patched versions
eclair acinq	`< 0.6.3`	`0.6.3`

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

Running one of these products? Scan your site to see whether it exposes a vulnerable version.