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TI-2022-18763 Aliases CVE-2022-39389GHSA-hc82-w9v8-83pr

Witness Block Parsing DoS Vulnerability in lnd

Priority HIGH 75CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

Lightning Network Daemon (lnd) is an implementation of a lightning bitcoin overlay network node. All lnd nodes before version `v0.15.4` are vulnerable to a block parsing bug that can cause a node to enter a degraded state once encountered. In this degraded state, nodes can continue to make payments and forward HTLCs, and close out channels. Opening channels is prohibited, and also on chain transaction events will be undetected. This can cause loss of funds if a CSV expiry is researched during a breach attempt or a CLTV delta expires forgetting the funds in the HTLC. A patch is available in `lnd` version 0.15.4. Users are advised to upgrade. Users unable to upgrade may use the `lncli updatechanpolicy` RPC call to increase their CLTV value to a very high amount or increase their fee policies. This will prevent nodes from routing through your node, meaning that no pending HTLCs can be present.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0111 66th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed lnd (lightningnetwork): v0.15.4-betagithub.com/lightningnetwork/lnd (Go): 0.15.4-beta

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
lightningnetworklndbefore v0.15.4-betav0.15.4-betaPatch availableCNA
—github.com/lightningnetwork/lnd (Go)before 0.15.4-beta0.15.4-betaPatch availableGHSA-hc82-w9v8-83pr
  • lnd Vendorlightningnetwork Affected before v0.15.4-beta Fixed in v0.15.4-beta Patch available CNA
  • github.com/lightningnetwork/lnd (Go) Vendor— Affected before 0.15.4-beta Fixed in 0.15.4-beta Patch available GHSA-hc82-w9v8-83pr

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:btcd_project:btcd:*:*:*:*:*:*:*:*before 0.23.3VulnerableBtcd Project
cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*before 0.15.4VulnerableLightning Network Daemon Project
  • cpe:2.3:a:btcd_project:btcd:*:*:*:*:*:*:*:* Versions before 0.23.3 Vulnerable ·Btcd Project
  • cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:* Versions before 0.15.4 Vulnerable ·Lightning Network Daemon Project

Remediation

  • Fix · CNA lnd (lightningnetwork) Fixed in v0.15.4-beta
  • Fix · GHSA-hc82-w9v8-83pr github.com/lightningnetwork/lnd (Go) Fixed in 0.15.4-beta Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-39389
  2. 2026-10-03 Alias added: GHSA-hc82-w9v8-83pr

References

Exploit 1

Patch 1

Advisory 3

Other 1

  • TI-2024-25617 Lightning Network Daemon Onion Bomb CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences