{
  "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-2026-102407",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-102407",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-06T19:31:37.820Z",
    "updatedAt": "2026-10-06T19:56:32.845Z",
    "importedAt": "2026-10-24T01:57:50.502Z",
    "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": "Incorrect Authorization in Elasticsearch Leading to Unauthorized Data Stream Modification",
      "summary": "Incorrect Authorization (CWE-863) in Elasticsearch can lead to unauthorized data stream modification via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user with sufficient privileges over a single resource could use the Modify Data Streams API to modify a data stream to which they were not otherwise authorized, potentially injecting data into it or affecting its ability to be searched normally. This issue does not allow an attacker to read the contents of a data stream they do not otherwise have access to.",
      "affected": [
        {
          "vendor": "Elastic",
          "product": "Elasticsearch",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7.17.5",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "7.17.29"
            },
            {
              "version": "8.2.2",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "8.19.18"
            },
            {
              "version": "9.0.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "9.3.7"
            },
            {
              "version": "9.4.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "9.4.3"
            }
          ]
        }
      ]
    }
  }
}