ETK-2026-1961Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-1961",
  "cve_id": null,
  "display_id": "ETK-2026-1961",
  "ghsa_id": "GHSA-95fq-78jc-hrqp",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Unmetered engine operations cause CPU exhaustion in tari_engine",
  "summary": "tari_engine fails to meter native work performed for certain WebAssembly engine operations. An attacker who can publish a template and submit a transaction can consume disproportionate CPU on validators, potentially disrupting consensus progress.",
  "mitigation": "No fixed release is recorded. Restrict untrusted template publication and transaction submission where possible, and apply an upstream release containing metering for this path when one is published.",
  "vendor": "rust",
  "product": "tari_engine",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 0.45.0"
      ],
      "ecosystem": "rust",
      "fixed_versions": [],
      "package_name": "tari_engine",
      "purl": "pkg:cargo/tari_engine"
    }
  ],
  "cwes": [
    400
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 36.94288743333333,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-10-15T05:16:14+00:00",
      "days": -6.021918961909722,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T05:47:47.820632+00:00",
      "url": "https://github.com/tari-project/tari-ootle/security/advisories/GHSA-95fq-78jc-hrqp"
    }
  }
}