CVE-2024-55563
MEDIUMBitcoin Core < 27.2 - Transaction-Relay Jamming via Off-Chain Protocol Attack
Title source: llmDescription
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.
References (5)
Core 5
Core References
Third Party Advisory
https://ariard.github.io
Product
https://bitcoincore.org
Issue Tracking
https://delvingbitcoin.org/t/full-disclosure-transaction-relay-throughput-overflow-attacks-against-off-chain-protocols/1305
Third Party Advisory
https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures
Scores
CVSS v3
5.3
EPSS
0.0063
EPSS Percentile
45.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-770
Status
published
Products (1)
bitcoin/bitcoin_core
< 27.2
Published
Dec 09, 2024
Tracked Since
Feb 18, 2026