CVE-2024-55563
Medium
Description
Bitcoin Core through 27.2 allows transaction-relay jamming via an off-chain protocol attack, a related issue to CVE-2024-52913. For example, the outcome of an HTLC (Hashed Timelock Contract) can be changed because a flood of transaction traffic prevents propagation of certain Lightning channel transactions.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Bitcoin Core
PublishedDec 9, 2024
First seenDec 9, 2024
Weakness typeCWE-770Allocation of resources without limits
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| bitcoin bitcoin_core | v ≤ 27.2 | — |
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