{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Moderate"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "title": "incorrect namespaces handling may lead to not authorized usage of Migration Toolkit for Containers (MTC)",
    "tracking": {
      "current_release_date": "2026-07-28T06:33:59+00:00",
      "generator": {
        "date": "2026-07-28T06:33:59+00:00",
        "engine": {
          "name": "CSAF Generator",
          "version": "3.1.0"
        }
      },
      "id": "CVE-2021-3948",
      "initial_release_date": "2021-11-10T00:00:00+00:00",
      "revision_history": [
        {
          "date": "2026-07-28T06:33:59+00:00",
          "number": "1",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "1"
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  },
  "product_tree": {
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        "name": "Red Hat",
        "branches": [
          {
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            "name": "Migration Toolkit for Containers 1.5.z",
            "product": {
              "name": "Migration Toolkit for Containers 1.5.z",
              "product_id": "mtc-1.5::el8",
              "product_identification_helper": {
                "cpe": "cpe:/a:redhat:rhmt:1.5::el8"
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          },
          {
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            "name": "Migration Toolkit for Containers 1.6.z",
            "product": {
              "name": "Migration Toolkit for Containers 1.6.z",
              "product_id": "mtc-1.6::el8",
              "product_identification_helper": {
                "cpe": "cpe:/a:redhat:rhmt:1.6::el8"
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          },
          {
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            "product": {
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              "product_id": "openshift-migration-controller-container-v1.5.2-0:6",
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    "relationships": [
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        "full_product_name": {
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          "product_id": "mtc-1.5::el8:openshift-migration-controller-container-v1.5.2-0:6"
        },
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        "relates_to_product_reference": "mtc-1.5::el8"
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        "full_product_name": {
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        "relates_to_product_reference": "mtc-1.6::el8"
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  "vulnerabilities": [
    {
      "cve": "CVE-2021-3948",
      "cwe": {
        "id": "CWE-276",
        "name": "Incorrect Default Permissions"
      },
      "discovery_date": "2021-11-10T00:00:00+00:00",
      "notes": [
        {
          "category": "description",
          "text": "An incorrect default permissions vulnerability was found in the mig-controller. Due to an incorrect cluster namespaces handling an attacker may be able to migrate a malicious workload to the target cluster, impacting confidentiality, integrity, and availability of the services located on that cluster.",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
        "fixed": [
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          "mtc-1.6::el8:openshift-migration-controller-container-v1.6.3-0:8"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-3948"
        },
        {
          "category": "external",
          "summary": "nvd.nist.gov",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3948"
        },
        {
          "category": "external",
          "summary": "www.cve.org",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-3948"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-11-29T14:32:07+00:00",
          "details": "Apply advisory RHSA-2021:4848 as per vendors instructions.",
          "product_ids": [
            "mtc-1.5::el8:openshift-migration-controller-container-v1.5.2-0:6"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2021:4848"
        },
        {
          "category": "vendor_fix",
          "date": "2022-01-20T06:31:23+00:00",
          "details": "Apply advisory RHSA-2022:0202 as per vendors instructions.",
          "product_ids": [
            "mtc-1.6::el8:openshift-migration-controller-container-v1.6.3-0:8"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2022:0202"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM"
          },
          "products": [
            "mtc-1.5::el8:openshift-migration-controller-container-v1.5.2-0:6",
            "mtc-1.6::el8:openshift-migration-controller-container-v1.6.3-0:8"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate",
          "product_ids": [
            "mtc-1.5::el8:openshift-migration-controller-container-v1.5.2-0:6",
            "mtc-1.6::el8:openshift-migration-controller-container-v1.6.3-0:8"
          ]
        }
      ],
      "title": "incorrect namespaces handling may lead to not authorized usage of Migration Toolkit for Containers (MTC)"
    }
  ]
}