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MEDIUM severity

Lightning Network Daemon (LND)'s onion processing logic leads to a denial of serviceGHSA-9gxx-58q6-42p7

MEDIUM

GHSA-9gxx-58q6-42p7 is a medium-severity (CVSS 6.5) Improper Input Validation vulnerability in github.com/lightningnetwork/lnd. A fix is available for github.com/lightningnetwork/lnd — see the affected versions and patch details below.

Also known asCVE-2024-38359GO-2024-2943
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for GHSA-9gxx-58q6-42p7.

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs48th percentile — riskier than 48% of all scored CVEsHighest risk
0.00%0.36%0.71%1.07%0.2%0.6%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐹github.com/lightningnetwork/lnd

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

The Lightning Network Daemon (lnd) - is a complete implementation of a Lightning Network node. A parsing vulnerability in lnd's onion processing logic and lead to a DoS vector due to excessive memory allocation. The issue was patched in lnd v0.17.0. Users should update to a version > v0.17.0 to be protected. Users unable to upgrade may set the --rejecthtlc CLI flag and also disable forwarding on channels via the UpdateChanPolicyCommand, or disable listening on a public network interface via the --nolisten flag as a mitigation.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/lightningnetwork/lndall versions0.17.0-betago get github.com/lightningnetwork/lnd@v0.17.0-beta

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/lightningnetwork/lnd, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/lightningnetwork/lnd to 0.17.0-beta or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9gxx-58q6-42p7 is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

### Impact A parsing vulnerability in lnd's onion processing logic led to a DoS vector due to excessive memory allocation. ### Patches The issue was patched in lnd [v0.17.0](https://github.com/lightningnetwork/lnd/releases/tag/v0.17.0-beta). Users should update to a version >= v0.17.0 to be protected. ### References Detailed blog post: https://morehouse.github.io/lightning/lnd-onion-bomb/ Developer discussion: https://delvingbitcoin.org/t/dos-disclosure-lnd-onion-bomb/979
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Lightning Network Daemon (LND)'s onion processing…