ETK-2026-2991Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-2991",
  "cve_id": null,
  "display_id": "ETK-2026-2991",
  "ghsa_id": "GHSA-vpp8-g58w-m8mp",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "HTTP/2 rapid-reset CPU exhaustion in Twisted",
  "summary": "Twisted applications using the `twisted.web` HTTP/2 server are affected. An unauthenticated remote client can consume server CPU and deny service by abusing stream resets, provided the client can reach an HTTP/2 endpoint.",
  "mitigation": "Upgrade Twisted to version 26.10.0rc1 or later. Until upgraded, disable HTTP/2 or restrict access to exposed HTTP/2 endpoints.",
  "vendor": "pip",
  "product": "pip:Twisted",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 26.4.0"
      ],
      "ecosystem": "pip",
      "fixed_versions": [
        "26.10.0rc1"
      ],
      "package_name": "Twisted",
      "purl": "pkg:pypi/Twisted"
    }
  ],
  "cwes": null,
  "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": 23.895901333333335,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-10-29T16:41:06+00:00",
      "days": -0.13529707402777777,
      "is_lower_bound": true,
      "measured_at": "2026-10-29T19:55:55.696643+00:00",
      "url": "https://github.com/advisories/GHSA-vpp8-g58w-m8mp"
    }
  }
}