ETK-2026-1598Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-1598",
  "cve_id": null,
  "display_id": "ETK-2026-1598",
  "ghsa_id": "GHSA-673q-mjm6-r5xr",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Remote code execution in Next.js cache handling",
  "summary": "Next.js applications using the App Router and Cache Components are affected when a `use cache` function returns multiple typed arrays. An unauthenticated attacker may be able to execute code remotely if that application pattern is present.",
  "mitigation": "Upgrade the npm `next` package to version 16.4.1 immediately. No configuration workaround is identified for applications with the affected cache functions.",
  "vendor": "npm",
  "product": "npm:next",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">=16.0.0 <= 16.4.0"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "16.4.1"
      ],
      "package_name": "next",
      "purl": "pkg:npm/next"
    }
  ],
  "cwes": null,
  "cvss_score": 9.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "mechanism_verified",
  "exploit": false,
  "pipeline_minutes": 44.49606561666667,
  "t0_at": null,
  "signals": {
    "check": {
      "at": "2026-10-14T19:23:55.763324+00:00",
      "days": -6.771093634861111,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T13:54:18.487185+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-14T17:47:07+00:00",
      "days": -6.838324691851852,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T13:54:18.487185+00:00",
      "url": "https://github.com/vercel/next.js/security/advisories/GHSA-673q-mjm6-r5xr"
    }
  }
}