NRDAX-T0312 - Tx-Relay Throughput Jamming

Pending classification · active · first seen 2026-07-01

Producer label: gossip_abuse. Not yet assigned a mechanism family.

provenance: Reproduced in NullRabbit's attack-reproduction pipeline

mechanism

CVE-2024-55563 (Bitcoin Core <= 27.2): transaction-relay jamming via an off-chain protocol attack ('Transaction-Relay Throughput Overflow Attacks against Off-Chain Protocols'; related to CVE-2024-52913). High-overflow variant: a flood of many small higher-feerate txs + their inv announcements overflows the fee-rate-sorted forward-transaction inventory (INVENTORY_BROADCAST_MAX / CompareInvMempoolOrder), so a lower-feerate pre-signed Lightning HTLC/commitment tx is never announced (jammed) before its timelock expires -> HTLC outcome changed.

live exposure

No exposure data. Slashr ↗ has no risk signal mapped to this technique yet — absence of data is not absence of exposure.

instances (2)

chain	primitive	fidelity	origin	reproducer (bundle)	source
bitcoin	bitcoin_tx_relay_jamming	lab	reverse-engineered-cve	bitcoin_tx_relay_jamming	CVE-2024-55563 ↗
bitcoin	btc_inv_eviction_jam	lab	reverse-engineered-cve	btc_inv_eviction_jam	bitcoincore.org ↗

cite

https://nrdax.com/techniques/NRDAX-T0312

plain

NRDAX Registry. Technique NRDAX-T0312.

bibtex

@misc{nrdax_NRDAX_T0312,
  title = {Tx-Relay Throughput Jamming (NRDAX-T0312)},
  howpublished = {NRDAX Registry},
  url = {https://nrdax.com/techniques/NRDAX-T0312},
}

json (csl)

{
  "id": "nrdax-NRDAX-T0312",
  "type": "dataset",
  "title": "Tx-Relay Throughput Jamming (NRDAX-T0312)",
  "URL": "https://nrdax.com/techniques/NRDAX-T0312",
  "publisher": "NRDAX Registry"
}

badge

[![NRDAX-T0312 in the NRDAX registry](https://nrdax.com/badge/NRDAX-T0312.svg)](https://nrdax.com/techniques/NRDAX-T0312-tx-relay-throughput-jamming)

use from the CLI

Retrieve or cite this technique from a script or the terminal with the NRDAX Python library & CLI.

Retrieve this technique

nrdax get NRDAX-T0312

Cite it (BibTeX)

nrdax cite NRDAX-T0312 --format bibtex

CLI guide → GitHub ↗