CVE-2026-122315

{
  "etk_id": "ETK-2026-3572",
  "cve_id": "CVE-2026-122315",
  "display_id": "CVE-2026-122315",
  "ghsa_id": "GHSA-24cc-9745-hxfc",
  "euvd_id": "EUVD-2026-117226",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unchecked type assertion in Kyverno attestation handling",
  "summary": "Kyverno versions before 1.19.2 mishandle a type field in OCI attestation statements. An unauthenticated attacker who can provide a crafted OCI referrer manifest can disrupt policy processing, and may bypass image verification when the relevant failure policy is configured to Ignore.",
  "mitigation": "Upgrade Kyverno to version 1.19.2 or later. Until upgraded, avoid using `failurePolicy: Ignore` for affected image-verification policies and restrict who can publish OCI referrer manifests.",
  "vendor": "kyverno",
  "product": "kyverno",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 1.18.2"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "1.19.2"
      ],
      "package_name": "github.com/kyverno/kyverno",
      "purl": "pkg:golang/github.com/kyverno/kyverno"
    }
  ],
  "cwes": [
    248
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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": 17.624814733333334,
  "t0_at": "2026-11-05T02:25:16.478000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-10-21T15:56:43+00:00",
      "days": -14.436498587962962,
      "is_lower_bound": false,
      "measured_at": "2026-11-05T02:25:16.478000+00:00",
      "url": "https://github.com/kyverno/kyverno/security/advisories/GHSA-24cc-9745-hxfc"
    },
    "trigger_signal": {
      "at": "2026-11-05T02:25:16.478000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-05T02:25:16.478000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-122315"
    }
  }
}