CVE-2026-66139
Full vulnerability record from the local CVENow database.
Description
OpenStack Zaqar through 22.0.0 allows authentication bypass via an EXTRA-SPEC header when a UUID is known.
Severity
MEDIUM
CVSS score
4.8
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-07-24 05:16:49.577000
Last modified
2026-10-24 13:10:00.147000
View original CVE JSON
{
"id": "CVE-2026-66139",
"sourceIdentifier": "[email protected]",
"published": "2026-07-24T05:16:49.577",
"lastModified": "2026-10-24T13:10:00.147",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "OpenStack Zaqar through 22.0.0 allows authentication bypass via an EXTRA-SPEC header when a UUID is known."
},
{
"lang": "es",
"value": "OpenStack Zaqar hasta la versión 22.0.0 permite la omisión de autenticación a través de un encabezado EXTRA-SPEC cuando se conoce un UUID."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "OpenStack",
"product": "Zaqar",
"defaultStatus": "unaffected",
"versions": [
{
"version": "12.0.0",
"lessThan": "20.1.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "21.0.0",
"status": "affected"
},
{
"version": "22.0.0",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L",
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 2.2,
"impactScore": 2.5
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-24T12:27:21.486675Z",
"id": "CVE-2026-66139",
"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-306"
}
]
}
],
"references": [
{
"url": "https://bugs.launchpad.net/ossa/+bug/2161254",
"source": "[email protected]"
},
{
"url": "https://www.openwall.com/lists/oss-security/2026/07/23/7",
"source": "[email protected]"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/07/24/27",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
]
}