NRDAX-T0248 - Recursive Filter Expression CPU Blowup

Compute amplification · RPC and public API · no bound · active · first seen 2026-07-03

provenance: Reproduced in NullRabbit's attack-reproduction pipeline

mechanism

IOTA_S1_EVENTFILTER_EXPONENTIAL: iotax_subscribeEvent depth-D balanced Or-tree filter → exponential CPU

live exposure

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

instances (1)

chain	primitive	fidelity	origin	reproducer (bundle)	source
iota	iota_s1_widefilter_subscribe_cpu	lab	NullRabbit Labs	iota_s1_widefilter_subscribe_cpu	-

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-T0143 - Malformed Field Gossip Before Validation active NRDAX-T0148 - Malformed KZG Proof Mismatch DoS active NRDAX-T0166 - Move Verifier Fixpoint CPU Exhaustion active

cite

https://nrdax.com/techniques/NRDAX-T0248

plain

NRDAX Registry. Technique NRDAX-T0248.

bibtex

@misc{nrdax_NRDAX_T0248,
  title = {Recursive Filter Expression CPU Blowup (NRDAX-T0248)},
  howpublished = {NRDAX Registry},
  url = {https://nrdax.com/techniques/NRDAX-T0248},
}

json (csl)

{
  "id": "nrdax-NRDAX-T0248",
  "type": "dataset",
  "title": "Recursive Filter Expression CPU Blowup (NRDAX-T0248)",
  "URL": "https://nrdax.com/techniques/NRDAX-T0248",
  "publisher": "NRDAX Registry"
}

badge

[![NRDAX-T0248 in the NRDAX registry](https://nrdax.com/badge/NRDAX-T0248.svg)](https://nrdax.com/techniques/NRDAX-T0248-recursive-filter-expression-cpu-blowup)

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-T0248

Cite it (BibTeX)

nrdax cite NRDAX-T0248 --format bibtex

CLI guide → GitHub ↗