CVE-2026-24708 (GCVE-0-2026-24708)

Vulnerability from cvelistv5 – Published: 2026-02-18 00:00 – Updated: 2026-02-18 17:03
VLAI?
Summary
An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova's Flat image backend to call qemu-img without a format restriction, resulting in an unsafe image resize operation that could destroy data on the host system. Only compute nodes using the Flat image backend (usually configured with use_cow_images=False) are affected.
CWE
  • CWE-669 - Incorrect Resource Transfer Between Spheres
Assigner
Impacted products
Vendor Product Version
OpenStack Nova Affected: 0 , < 30.2.2 (semver)
Affected: 31.0.0 , < 31.2.1 (semver)
Affected: 32.0.0 , < 32.1.1 (semver)
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Show details on NVD website

{
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          "vendor": "OpenStack",
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            },
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                }
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              "negate": false,
              "operator": "OR"
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          "value": "An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova\u0027s Flat image backend to call qemu-img without a format restriction, resulting in an unsafe image resize operation that could destroy data on the host system. Only compute nodes using the Flat image backend (usually configured with use_cow_images=False) are affected."
        }
      ],
      "metrics": [
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            "baseSeverity": "HIGH",
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              "description": "CWE-669 Incorrect Resource Transfer Between Spheres",
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        "dateUpdated": "2026-02-18T17:03:53.469Z",
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        "shortName": "mitre"
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          "url": "https://bugs.launchpad.net/nova/+bug/2137507"
        },
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-24708",
    "datePublished": "2026-02-18T00:00:00.000Z",
    "dateReserved": "2026-01-24T00:00:00.000Z",
    "dateUpdated": "2026-02-18T17:03:53.469Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-24708\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2026-02-18T18:24:33.087\",\"lastModified\":\"2026-02-18T18:24:33.087\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova\u0027s Flat image backend to call qemu-img without a format restriction, resulting in an unsafe image resize operation that could destroy data on the host system. Only compute nodes using the Flat image backend (usually configured with use_cow_images=False) are affected.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@mitre.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.8}]},\"weaknesses\":[{\"source\":\"cve@mitre.org\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-669\"}]}],\"references\":[{\"url\":\"https://bugs.launchpad.net/nova/+bug/2137507\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://www.openwall.com/lists/oss-security/2026/02/17/7\",\"source\":\"cve@mitre.org\"}]}}"
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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