{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-66797",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-66797",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-21T08:21:58.452Z",
    "updatedAt": "2026-08-21T19:45:45.850Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Apache CloudStack: Unauthorised comment creation and disclosure",
      "summary": "Improper access control in CloudStack's annotation functionality allows unauthorized comment creation and disclosure.\n\n\n\n\nThe addAnnotation and listAnnotation APIs perform an ownership check when an entity's UUID is specified, but fail to honor its result correctly. This lets any authenticated user write annotations to, and disclose existing annotations/comments on, an entity they don't own by simply supplying its UUID.\n\n\n\n\nThis issue affects Apache CloudStack: from 4.15.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.\n\n\n\n\n\nUsers are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.",
      "affected": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache CloudStack",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4.16.0.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "4.20.3.0"
            },
            {
              "version": "4.21.0.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "4.22.1.0"
            }
          ]
        }
      ]
    }
  }
}