CVE-2020-26896 (GCVE-0-2020-26896)
Vulnerability from cvelistv5
Published
2020-10-21 02:00
Modified
2024-08-04 16:03
Severity ?
CWE
  • n/a
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.
References
Impacted products
Vendor Product Version
n/a n/a Version: n/a
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