ETK-2026-1288Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-1288",
  "cve_id": null,
  "display_id": "ETK-2026-1288",
  "ghsa_id": "GHSA-q28g-vj28-89fm",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "RELAX NG denial of service in turbohtml",
  "summary": "turbohtml versions before 1.14.0 can crash, hang, or consume excessive memory while compiling or validating certain RELAX NG schemas. An attacker can deny service if they can influence a schema; memory exhaustion also requires validation of untrusted documents against an ambiguous schema.",
  "mitigation": "Upgrade turbohtml to version 1.14.0 or later. Until upgrading, do not compile untrusted RELAX NG schemas and restrict validation of untrusted documents against ambiguous schemas.",
  "vendor": "pip",
  "product": "pip:turbohtml",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.1.0, <= 1.13.1"
      ],
      "ecosystem": "pip",
      "fixed_versions": [
        "1.14.0"
      ],
      "package_name": "turbohtml",
      "purl": "pkg:pypi/turbohtml"
    }
  ],
  "cwes": [
    476
  ],
  "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": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 13.4188181,
  "t0_at": null,
  "signals": {
    "public_poc": {
      "at": "2026-10-09T21:12:35+00:00",
      "days": -11.72716124976852,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T14:39:41.848639+00:00",
      "url": "https://github.com/tox-dev/turbohtml/security/advisories/GHSA-q28g-vj28-89fm"
    },
    "trigger_signal": {
      "at": "2026-10-09T21:12:35+00:00",
      "days": -11.72716124976852,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T14:39:41.848639+00:00",
      "url": "https://github.com/tox-dev/turbohtml/security/advisories/GHSA-q28g-vj28-89fm"
    }
  }
}