{
  "GSD": {
    "alias": "CVE-2023-34091",
    "id": "GSD-2023-34091"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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      "aliases": [
        "CVE-2023-34091"
      ],
      "details": "Kyverno is a policy engine designed for Kubernetes. In versions of Kyverno prior to 1.10.0, resources which have the `deletionTimestamp` field defined can bypass validate, generate, or mutate-existing policies, even in cases where the `validationFailureAction` field is set to `Enforce`. This situation occurs as resources pending deletion were being consciously exempted by Kyverno, as a way to reduce processing load as policies are typically not applied to objects which are being deleted. However, this could potentially result in allowing a malicious user to leverage the Kubernetes finalizers feature by setting a finalizer which causes the Kubernetes API server to set the `deletionTimestamp` and then not completing the delete operation as a way to explicitly to bypass a Kyverno policy. Note that this is not applicable to Kubernetes Pods but, as an example, a Kubernetes Service resource can be manipulated using an indefinite finalizer to bypass policies. This is resolved in Kyverno 1.10.0. There is no known workaround.",
      "id": "GSD-2023-34091",
      "modified": "2023-12-13T01:20:30.422305Z",
      "schema_version": "1.4.0"
    }
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      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
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              {
                "cweId": "CWE-285",
                "lang": "eng",
                "value": "CWE-285: Improper Authorization"
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          }
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        "discovery": "UNKNOWN"
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      "advisories": [
        {
          "affected_range": "\u003cv1.10.0",
          "affected_versions": "All versions before 1.10.0",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2023-06-05",
          "description": "Kyverno is a policy engine designed for Kubernetes. In versions of Kyverno prior to 1.10.0, resources which have the `deletionTimestamp` field defined can bypass validate, generate, or mutate-existing policies, even in cases where the `validationFailureAction` field is set to `Enforce`. This situation occurs as resources pending deletion were being consciously exempted by Kyverno, as a way to reduce processing load as policies are typically not applied to objects which are being deleted. However, this could potentially result in allowing a malicious user to leverage the Kubernetes finalizers feature by setting a finalizer which causes the Kubernetes API server to set the `deletionTimestamp` and then not completing the delete operation as a way to explicitly to bypass a Kyverno policy. Note that this is not applicable to Kubernetes Pods but, as an example, a Kubernetes Service resource can be manipulated using an indefinite finalizer to bypass policies. This is resolved in Kyverno 1.10.0. There is no known workaround.",
          "fixed_versions": [
            "v1.10.0"
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          "identifier": "CVE-2023-34091",
          "identifiers": [
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            "CVE-2023-34091"
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          "not_impacted": "All versions starting from 1.10.0",
          "package_slug": "go/github.com/kyverno/kyverno",
          "pubdate": "2023-06-05",
          "solution": "Upgrade to version 1.10.0 or above.",
          "title": "Kyverno resource with a deletionTimestamp may allow policy circumvention",
          "urls": [
            "https://github.com/kyverno/kyverno/security/advisories/GHSA-hq4m-4948-64cc",
            "https://nvd.nist.gov/vuln/detail/CVE-2023-34091",
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          "uuid": "f19e6f1e-613c-4531-885a-f932c995d91e",
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                "sha": "6d267f7b32bd9ab3578f7f4abc66b55a81cdd987",
                "tags": [
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                "timestamp": "20230530082414"
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              "number": "v1.10.0"
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                "vulnerable": true
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      "lastModifiedDate": "2023-06-09T15:18Z",
      "publishedDate": "2023-06-01T17:15Z"
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}