Description
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.
References (3)
Scores
CVSS v3
8.2
EPSS
0.0014
EPSS Percentile
32.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Details
CWE
CWE-354
Status
published
Products (2)
lightning_network_daemon_project/lightning_network_daemon
0.11.0 (5 CPE variants)
lightning_network_daemon_project/lightning_network_daemon
< 0.11.0
Published
Oct 21, 2020
Tracked Since
Feb 18, 2026