ETK-2026-194Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-194",
  "cve_id": null,
  "display_id": "ETK-2026-194",
  "ghsa_id": "GHSA-53rm-773f-4q8c",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Stream-limit validation flaw in quinn-proto",
  "summary": "quinn-proto mishandles MAX_STREAM_DATA frames for peer-initiated bidirectional streams whose IDs exceed the advertised stream limit. After completing the handshake, a peer can cause an affected client or server that accepts bidirectional streams to create and return excessive streams, potentially exhausting resources or disrupting service.",
  "mitigation": "Upgrade quinn-proto to version 0.11.19 or later. Prioritize systems that accept bidirectional streams from unauthenticated or otherwise untrusted peers.",
  "vendor": "rust",
  "product": "rust:quinn-proto",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0.11.0, <= 0.11.18"
      ],
      "ecosystem": "rust",
      "fixed_versions": [
        "0.11.19"
      ],
      "package_name": "quinn-proto",
      "purl": "pkg:cargo/quinn-proto"
    }
  ],
  "cwes": [
    358
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 15.864900983333333,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-09-30T07:34:11+00:00",
      "days": -21.074181383854167,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T09:21:00.296116+00:00",
      "url": "https://github.com/quinn-rs/quinn/security/advisories/GHSA-53rm-773f-4q8c"
    }
  }
}