CVE-2026-17527

Full vulnerability record from the local CVENow database.
Description

In containerized-data-importer (CDI), the aggregated cdi.kubevirt.io:view ClusterRole, intended to provide read-only access to CDI resources, includes a rule granting create on the datavolumes/source subresource. CDI's DataVolume clone authorization accepts this permission as sufficient to authorize cloning the contents of any PVC the caller can name, without requiring write access to the source namespace. A user or service account bound to the view role, commonly granted cluster-wide via ClusterRoleBinding, who also has ordinary write access (edit/admin) to any single namespace, can use this to exfiltrate the contents of any PVC in the cluster into a namespace they control, bypassing namespace isolation and the read-only guarantee of the view role.
Severity
HIGH
CVSS score
7.7 (v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
[email protected]
Published
2026-07-27 10:16:37.617000
Last modified
2026-10-24 13:10:00.147000
View original CVE JSON
{
  "id": "CVE-2026-17527",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-27T10:16:37.617",
  "lastModified": "2026-10-24T13:10:00.147",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In containerized-data-importer (CDI), the aggregated cdi.kubevirt.io:view ClusterRole, intended to provide read-only access to CDI resources, includes a rule granting create on the datavolumes/source subresource. CDI's DataVolume clone authorization accepts this permission as sufficient to authorize cloning the contents of any PVC the caller can name, without requiring write access to the source namespace. A user or service account bound to the view role, commonly granted cluster-wide via ClusterRoleBinding, who also has ordinary write access (edit/admin) to any single namespace, can use this to exfiltrate the contents of any PVC in the cluster into a namespace they control, bypassing namespace isolation and the read-only guarantee of the view role."
    },
    {
      "lang": "es",
      "value": "En containerized-data-importer (CDI), el ClusterRole agregado cdi.kubevirt.io:view, destinado a proporcionar acceso de solo lectura a los recursos de CDI, incluye una regla que otorga create en el subrecurso datavolumes/source. La autorización de clonación de DataVolume de CDI acepta este permiso como suficiente para autorizar la clonación del contenido de cualquier PVC que el llamador pueda nombrar, sin requerir acceso de escritura al espacio de nombres de origen. Un usuario o cuenta de servicio vinculado al rol view, comúnmente otorgado a nivel de clúster a través de ClusterRoleBinding, que también tiene acceso de escritura ordinario (edit/admin) a cualquier espacio de nombres único, puede usar esto para exfiltrar el contenido de cualquier PVC en el clúster a un espacio de nombres que controlen, eludiendo el aislamiento del espacio de nombres y la garantía de solo lectura del rol view."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Red Hat",
          "product": "Red Hat Container Native Virtualization 4.14",
          "defaultStatus": "affected",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "packageName": "container-native-virtualization/virt-cdi-operator-rhel9",
          "cpes": [
            "cpe:/a:redhat:container_native_virtualization:4.14::el9"
          ],
          "versions": [
            {
              "version": "1788157795",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Container Native Virtualization 4.16",
          "defaultStatus": "affected",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "packageName": "container-native-virtualization/virt-cdi-operator-rhel9",
          "cpes": [
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          ],
          "versions": [
            {
              "version": "1787585647",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
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        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Container Native Virtualization 4.18",
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          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "packageName": "container-native-virtualization/virt-cdi-operator-rhel9",
          "cpes": [
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          "versions": [
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              "version": "1787586357",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Container Native Virtualization 4.19",
          "defaultStatus": "affected",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "packageName": "container-native-virtualization/virt-cdi-operator-rhel9",
          "cpes": [
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          "versions": [
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              "version": "1787234290",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
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        {
          "vendor": "Red Hat",
          "product": "Red Hat Container Native Virtualization 4.20",
          "defaultStatus": "affected",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "packageName": "container-native-virtualization/virt-cdi-operator-rhel9",
          "cpes": [
            "cpe:/a:redhat:container_native_virtualization:4.20::el9"
          ],
          "versions": [
            {
              "version": "1787231995",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
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        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Container Native Virtualization 4.21",
          "defaultStatus": "affected",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "packageName": "container-native-virtualization/virt-cdi-operator-rhel9",
          "cpes": [
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          "versions": [
            {
              "version": "1787235286",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
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        {
          "vendor": "Red Hat",
          "product": "Red Hat Container Native Virtualization 4.22",
          "defaultStatus": "affected",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "packageName": "container-native-virtualization/virt-cdi-operator-rhel9",
          "cpes": [
            "cpe:/a:redhat:container_native_virtualization:4.22::el9"
          ],
          "versions": [
            {
              "version": "1787295217",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat OpenShift Virtualization 4",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "container-native-virtualization/virt-cdi-operator",
          "cpes": [
            "cpe:/a:redhat:container_native_virtualization:4"
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 4.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-27T18:09:12.042841Z",
          "id": "CVE-2026-17527",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:59062",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:59083",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:59109",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:60117",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:60301",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:61666",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:62599",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-17527",
      "source": "[email protected]"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507413",
      "source": "[email protected]"
    }
  ]
}