CVE-2020-26896 (GCVE-0-2020-26896)
Vulnerability from cvelistv5 – Published: 2020-10-21 02:00 – Updated: 2024-08-04 16:03
VLAI
EPSS
VEX
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.
Severity
8.2 (High)
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://gist.github.com/ariard/6bdeb995565d1cc292… | x_refsource_MISC |
| https://lists.linuxfoundation.org/pipermail/light… | x_refsource_MISC |
| https://lists.linuxfoundation.org/pipermail/light… | x_refsource_MISC |
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Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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