{
  "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-2021-40865",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-40865",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2021-10-25T12:22:37.000Z",
    "updatedAt": "2024-08-04T02:51:07.676Z",
    "importedAt": "2026-10-24T01:56:32.228Z",
    "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": "Unsafe Pre-Authentication Deserialization In Workers",
      "summary": "An Unsafe Deserialization vulnerability exists in the worker services of the Apache Storm supervisor server allowing pre-auth Remote Code Execution (RCE). Apache Storm 2.2.x users should upgrade to version 2.2.1 or 2.3.0. Apache Storm 2.1.x users should upgrade to version 2.1.1. Apache Storm 1.x users should upgrade to version 1.2.4",
      "affected": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Storm",
          "versions": [
            {
              "version": "v1.0.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "Apache Storm *"
            },
            {
              "version": "Apache Storm",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "v1.2.4",
              "changes": [
                {
                  "at": "v2.1.1",
                  "status": "unaffected"
                },
                {
                  "at": "v2.2.1",
                  "status": "unaffected"
                },
                {
                  "at": "v2.3.0",
                  "status": "unaffected"
                }
              ]
            }
          ]
        }
      ]
    }
  }
}