CVE-2026-124440

{
  "etk_id": "ETK-2026-3899",
  "cve_id": "CVE-2026-124440",
  "display_id": "CVE-2026-124440",
  "ghsa_id": "GHSA-xvrq-w385-5mfv",
  "euvd_id": "EUVD-2026-119560",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authorization bypass in Kyverno apiCall namespace restriction",
  "summary": "Kyverno 1.19.1 does not reliably confine apiCall requests to the intended namespace. A tenant who can create namespaced Policies may access resources outside that namespace or perform cluster-scoped actions with the admission controller service account's permissions.",
  "mitigation": "Upgrade Kyverno to version 1.19.2. Until the upgrade is complete, restrict untrusted users from creating or modifying Kyverno Policies and review the admission controller service account's permissions.",
  "vendor": "kyverno",
  "product": "kyverno",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.19.1, < 1.19.2"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "1.19.2"
      ],
      "package_name": "kyverno",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 9.9,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "epss_score": 0.0055,
  "epss_percentile": 0.4617,
  "epss_asof": "2026-11-09",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 35.65859416666667,
  "t0_at": "2026-11-08T13:15:33.723000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-08T16:30:44.034033+00:00",
      "days": 0.1355360073263889,
      "is_lower_bound": false,
      "measured_at": "2026-11-08T13:15:33.723000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-08T13:15:33.723000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-08T13:15:33.723000+00:00",
      "url": "https://github.com/advisories/GHSA-xvrq-w385-5mfv"
    }
  }
}