ETK-2026-1323Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-1323",
  "cve_id": null,
  "display_id": "ETK-2026-1323",
  "ghsa_id": "GHSA-5jr9-983r-c8x4",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Regular expression denial of service in i18next",
  "summary": "i18next versions 25.3.3 through 26.4.3 can consume excessive processing time while handling translation input containing an unterminated nesting marker. An attacker may cause a server event loop to stall or a browser tab to hang when untrusted values are supplied to `t()` for interpolation or affected translation keys are processed.",
  "mitigation": "Upgrade i18next to version 26.4.4. Until upgrading, reject or remove the configured nesting prefix, such as `$t(`, from untrusted values before passing them to `t()`.",
  "vendor": "npm",
  "product": "npm:i18next",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 25.3.3, < 26.4.4"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "26.4.4"
      ],
      "package_name": "i18next",
      "purl": "pkg:npm/i18next"
    }
  ],
  "cwes": [
    400
  ],
  "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": 13.150812333333333,
  "t0_at": null,
  "signals": {
    "public_poc": {
      "at": "2026-10-12T07:07:17+00:00",
      "days": -9.19906615005787,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T11:53:56.338556+00:00",
      "url": "https://github.com/i18next/i18next/security/advisories/GHSA-5jr9-983r-c8x4"
    },
    "trigger_signal": {
      "at": "2026-10-12T07:07:17+00:00",
      "days": -9.19906615005787,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T11:53:56.338556+00:00",
      "url": "https://github.com/i18next/i18next/security/advisories/GHSA-5jr9-983r-c8x4"
    }
  }
}