CVE-2026-125370

{
  "etk_id": "ETK-2026-4011",
  "cve_id": "CVE-2026-125370",
  "display_id": "CVE-2026-125370",
  "ghsa_id": "GHSA-42fc-m93g-j65w",
  "euvd_id": "EUVD-2026-120533",
  "status": "published",
  "anchor_state": "anchored",
  "title": "JWT authentication bypass in Kubero",
  "summary": "Kubero versions 3.0.0 through 3.1.1 are affected when JWT_SECRET is unset. A remote unauthenticated attacker may obtain administrative access by creating tokens that the application accepts with attacker-chosen privileges.",
  "mitigation": "Set JWT_SECRET to a unique, high-entropy secret and restart Kubero so it does not use its fallback signing key. Restrict public access to the service until a vendor-fixed release is available.",
  "vendor": "kubero-dev",
  "product": "kubero",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.0.0, <= 3.1.1"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "kubero",
      "purl": null
    }
  ],
  "cwes": [
    321
  ],
  "cvss_score": 9.3,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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": 11.1450998,
  "t0_at": "2026-11-09T23:27:41.949000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-09T23:27:41.949000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-09T23:27:41.949000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-125370"
    }
  }
}