Prior to 0.11.0-beta, LND (Lightning Network Daemon) had a vulnerability in its invoice…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Prior to 0.11.0-beta, LND (Lightning Network Daemon) had a vulnerability in its invoice database. While claiming on-chain a received HTLC output, it didn't verify that the corresponding outgoing off-chain HTLC was already settled before releasing the preimage. In the case of a hash-and-amount collision with an invoice, the preimage for an expected payment was instead released. A malicious peer could have deliberately intercepted an HTLC intended for the victim node, probed the preimage through a colluding relayed HTLC, and stolen the intercepted HTLC. The impact is a loss of funds in certain situations, and a weakening of the victim's receiver privacy.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:* | before 0.11.0 | Vulnerable | Lightning Network Daemon Project |
| cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:-:*:*:*:*:*:* | 0.11.0 | Vulnerable | Lightning Network Daemon Project |
| cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc1:*:*:*:*:*:* | 0.11.0 beta_rc1 | Vulnerable | Lightning Network Daemon Project |
| cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc2:*:*:*:*:*:* | 0.11.0 beta_rc2 | Vulnerable | Lightning Network Daemon Project |
| cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc3:*:*:*:*:*:* | 0.11.0 beta_rc3 | Vulnerable | Lightning Network Daemon Project |
| cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc4:*:*:*:*:*:* | 0.11.0 beta_rc4 | Vulnerable | Lightning Network Daemon Project |
- cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:* Versions before 0.11.0 Vulnerable ·Lightning Network Daemon Project
- cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:-:*:*:*:*:*:* Versions 0.11.0 Vulnerable ·Lightning Network Daemon Project
- cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc1:*:*:*:*:*:* Versions 0.11.0 beta_rc1 Vulnerable ·Lightning Network Daemon Project
- cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc2:*:*:*:*:*:* Versions 0.11.0 beta_rc2 Vulnerable ·Lightning Network Daemon Project
- cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc3:*:*:*:*:*:* Versions 0.11.0 beta_rc3 Vulnerable ·Lightning Network Daemon Project
- cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc4:*:*:*:*:*:* Versions 0.11.0 beta_rc4 Vulnerable ·Lightning Network Daemon Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26896
References
More Lightning Network Daemon Project Lightning Network Daemon vulnerabilities
- TI-2022-18763 Witness Block Parsing DoS Vulnerability in lnd CVSS 3.1HIGH 8.2
- TI-2021-18324 Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure. CVSS 3.1HIGH 8.6
- TI-2020-16322 Prior to 0.10.0-beta, LND (Lightning Network Daemon) would have accepted a counterparty… CVSS 3.1MEDIUM 5.3
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences