NRDAX-T0143 - Malformed Field Gossip Before Validation

Compute amplification · Consensus ingest · late bound · active · first seen 2026-07-07

provenance: Reproduced in NullRabbit's attack-reproduction pipeline

mechanism

GHSA-hrhf-2vcr-ghch (ASA-2025-003): a BitArray whose declared Bits does not match its Elems count (len(Elems) != ceil(Bits/64)) is processed in an invalid state and gossiped to peers before validation → network halt (VoteSetBits channel 0x23; fixed v0.38.19 / v0.37.16).

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
cosmos	cometbft_bitarray_mismatch	lab	reverse-engineered-cve	cometbft_bitarray_mismatch	GHSA-hrhf-2vcr-ghch ↗
cosmos	cometbft_blockpart_mismatch	lab	reverse-engineered-cve	cometbft_blockpart_mismatch	GHSA-r3r4-g7hq-pq4f ↗

related (Compute amplification)

NRDAX-T0006 - Async Runtime Blocking VM Execution active NRDAX-T0076 - Expensive Debug RPC Compute Amplification active NRDAX-T0088 - GetData Request Flood active NRDAX-T0100 - Handshake Crypto CPU Burn active NRDAX-T0139 - Legacy Sighash Quadratic CPU Blowup active NRDAX-T0148 - Malformed KZG Proof Mismatch DoS active NRDAX-T0166 - Move Verifier Fixpoint CPU Exhaustion active NRDAX-T0184 - Orphan Tx Resolution CPU Amplification active

cite

https://nrdax.com/techniques/NRDAX-T0143

plain

NRDAX Registry. Technique NRDAX-T0143.

bibtex

@misc{nrdax_NRDAX_T0143,
  title = {Malformed Field Gossip Before Validation (NRDAX-T0143)},
  howpublished = {NRDAX Registry},
  url = {https://nrdax.com/techniques/NRDAX-T0143},
}

json (csl)

{
  "id": "nrdax-NRDAX-T0143",
  "type": "dataset",
  "title": "Malformed Field Gossip Before Validation (NRDAX-T0143)",
  "URL": "https://nrdax.com/techniques/NRDAX-T0143",
  "publisher": "NRDAX Registry"
}

badge

[![NRDAX-T0143 in the NRDAX registry](https://nrdax.com/badge/NRDAX-T0143.svg)](https://nrdax.com/techniques/NRDAX-T0143-malformed-field-gossip-before-validation)

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-T0143

Cite it (BibTeX)

nrdax cite NRDAX-T0143 --format bibtex

CLI guide → GitHub ↗