ETK-2026-4100Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-4100",
  "cve_id": null,
  "display_id": "ETK-2026-4100",
  "ghsa_id": "GHSA-pjx7-wx97-6wf8",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Regular-expression denial of service in graphql",
  "summary": "The graphql Ruby gem can spend excessive resources parsing specially formed query strings because of a regular-expression matching flaw. An attacker who can submit GraphQL queries to an application may be able to degrade service availability; graphql-c_parser may also be affected where it is in use.",
  "mitigation": "Upgrade the graphql gem to version 2.6.15. Until upgraded, restrict untrusted GraphQL query submission and apply request limits to reduce exposure.",
  "vendor": "rubygems",
  "product": "rubygems:graphql",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.0.1, <= 2.6.14"
      ],
      "ecosystem": "rubygems",
      "fixed_versions": [
        "2.6.15"
      ],
      "package_name": "graphql",
      "purl": "pkg:gem/graphql"
    }
  ],
  "cwes": [
    1333
  ],
  "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": 11.428716883333333,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-11-09T19:34:34+00:00",
      "days": -1.4579436148842593,
      "is_lower_bound": true,
      "measured_at": "2026-11-11T06:34:00.370189+00:00",
      "url": "https://github.com/rmosolgo/graphql-ruby/security/advisories/GHSA-pjx7-wx97-6wf8"
    }
  }
}