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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"
    }
  ]
}