{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.14.0"
              },
              {
                "fixed": "1.19.1"
              },
              {
                "fixed": "1.19.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "338a72c59ddd055a3ad8aaae511bafa742608641"
            },
            {
              "fixed": "40ec788d48bb28d83dbf85538e962a59db9d45c6"
            }
          ],
          "repo": "https://github.com/kyverno/kyverno",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-5cjf-wwfg-pj4c"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100704.json"
  },
  "details": "Kyverno is a policy engine for Kubernetes. In versions 1.14.0 through 1.19.0, the ImageValidatingPolicy (policies.kyverno.io/v1beta1) evaluator never reads the spec.images and spec.allowedValues fields of a PolicyException. Any PolicyException whose policyRefs and matchConditions match a resource causes image signature verification to be skipped for the entire resource rather than only for the listed images or values, so an exception intended to exempt a single trusted image exempts every image on the matched resource(s). As a result, unsigned or untrusted images can be admitted to the cluster without signature verification. This differs from ValidatingPolicy, GeneratingPolicy, and MutatingPolicy, which treat the same field as a partial exemption. The issue is fixed in version 1.19.1.",
  "id": "CVE-2026-100704",
  "modified": "2026-09-29T03:30:46.673127576Z",
  "published": "2026-09-26T13:23:59.326Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100704.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/kyverno/kyverno/security/advisories/GHSA-5cjf-wwfg-pj4c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100704"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/kyverno-before-1.19.1-imagevalidatingpolicy-exception-bypass"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Kyverno before 1.19.1 ImageValidatingPolicy Exception Bypass"
}