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.
Severity ?
8.2 (High)
CWE
- CWE-669 - Incorrect Resource Transfer Between Spheres
Assigner
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Nova",
"vendor": "OpenStack",
"versions": [
{
"lessThan": "30.2.2",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "31.2.1",
"status": "affected",
"version": "31.0.0",
"versionType": "semver"
},
{
"lessThan": "32.1.1",
"status": "affected",
"version": "32.0.0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*",
"versionEndExcluding": "30.2.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*",
"versionEndExcluding": "31.2.1",
"versionStartIncluding": "31.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*",
"versionEndExcluding": "32.1.1",
"versionStartIncluding": "32.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"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": [
{
"cvssV3_1": {
"baseScore": 8.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-669",
"description": "CWE-669 Incorrect Resource Transfer Between Spheres",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-18T17:03:53.469Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://bugs.launchpad.net/nova/+bug/2137507"
},
{
"url": "https://www.openwall.com/lists/oss-security/2026/02/17/7"
}
],
"x_generator": {
"engine": "enrichogram 0.0.1"
}
}
},
"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\"}]}}"
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…