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Medium

KubeVirt Excessive Role Permissions Could Enable Unauthorized VMI Migrations Between Nodes

Type: advisorySources: OSV

KubeVirt is a virtual machine management add-on for Kubernetes. In 1.5.0 and earlier, the permissions granted to the virt-handler service account, such as the ability to update VMI and patch nodes, could be abused to force a VMI migration to an attacker-controlled node. This vulnerability could otherwise allow an attacker to mark all nodes as unschedulable, potentially forcing the migration or creation of privileged pods onto a compromised node.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2025-64436
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 02:28 UTC · Revision 1

Source evidence

KubeVirt Excessive Role Permissions Could Enable Unauthorized VMI Migrations Between Nodes

core-osv · Original source

Published 7 Nov 2025, 22:59 UTC

KubeVirt is a virtual machine management add-on for Kubernetes. In 1.5.0 and earlier, the permissions granted to the virt-handler service account, such as the ability to update VMI and patch nodes, could be abused to force a VMI migration to an attacker-controlled node. This vulnerability could otherwise allow an attacker to mark all nodes as unschedulable, potentially forcing the migration or creation of privileged pods onto a compromised node.

osv:CVE-2025-64436
Complete source record
{
  "id": "fdd632c907e1246d7549a88c2f4a284d07dba7c5287f4a8bdb052412fcb9beaa",
  "url": "https://osv.dev/vulnerability/CVE-2025-64436",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "KubeVirt Excessive Role Permissions Could Enable Unauthorized VMI Migrations Between Nodes",
    "summary": "KubeVirt is a virtual machine management add-on for Kubernetes. In 1.5.0 and earlier, the permissions granted to the virt-handler service account, such as the ability to update VMI and patch nodes, could be abused to force a VMI migration to an attacker-controlled node. This vulnerability could otherwise allow an attacker to mark all nodes as unschedulable, potentially forcing the migration or creation of privileged pods onto a compromised node.",
    "evidence": "osv:CVE-2025-64436",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-64436",
      "aliases": [
        "CVE-2025-64436",
        "GHSA-7xgm-5prm-v5gc",
        "GO-2025-4104"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kubevirt/kubevirt",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "4f27e414aa0e7c805b04911902b888bc9c3b2f82"
                },
                {
                  "introduced": "d53baa7f84687d156bd8a3a80d7ea2fbd8e0a993"
                },
                {
                  "last_affected": "00d03e43e3bf03e563136695a4732b65ed42d764"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:kubevirt:kubevirt:*:*:*:*:*:kubernetes:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.5.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:kubevirt:kubevirt:*:*:*:*:*:kubernetes:*:*",
                    "range": [
                      {
                        "introduced": "1.6.0"
                      },
                      {
                        "last_affected": "1.6.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
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          "versions": [
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-64436.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.047767734Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64436.json",
        "https://github.com/kubevirt/kubevirt/security/advisories/GHSA-7xgm-5prm-v5gc",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-64436"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-269",
          "CWE-276"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64436.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-64436",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 517365,
  "published_at": "2025-11-07T22:59:47.228+00:00"
}