FKIE_CVE-2026-93856

Vulnerability from fkie_nvd - Published: 2026-10-21 06:16 - Updated: 2026-10-21 07:17
Severity
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
In OpenStack Cinder through 29.0.0, cross-project information disclosure can occur in the Messages API. A non-admin user with the project-scoped 'member' or 'reader' role making the Block Storage API v3.3 "List messages" call finds the non-expired user messages for other projects included in the response, resulting in the leakage of UUIDs of resources owned by other projects, in addition to the user message about the other projects' resources (which, by design, are sanitized generic messages). All Cinder deployments are affected.
References
cve@mitre.orghttps://bugs.launchpad.net/cinder/+bug/2160671
cve@mitre.orghttps://security.openstack.org/ossa/OSSA-2026-045.html
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2026/10/20/17
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/10/20/17
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "Block Storage API version 3.3"
          ],
          "product": "Cinder",
          "repo": "https://opendev.org/openstack/cinder",
          "vendor": "OpenStack",
          "versions": [
            {
              "lessThan": "26.3.1",
              "status": "affected",
              "version": "9.0.0",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "27.0.0",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "28.0.0",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "29.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In OpenStack Cinder through 29.0.0, cross-project information disclosure can occur in the Messages API. A non-admin user with the project-scoped \u0027member\u0027 or \u0027reader\u0027 role making the Block Storage API v3.3 \"List messages\" call finds the non-expired user messages for other projects included in the response, resulting in the leakage of UUIDs of resources owned by other projects, in addition to the user message about the other projects\u0027 resources (which, by design, are sanitized generic messages). All Cinder deployments are affected."
    }
  ],
  "id": "CVE-2026-93856",
  "lastModified": "2026-10-21T07:17:18.260",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-10-21T06:16:51.017",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://bugs.launchpad.net/cinder/+bug/2160671"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://security.openstack.org/ossa/OSSA-2026-045.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.openwall.com/lists/oss-security/2026/10/20/17"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/10/20/17"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-669"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}



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