{
  "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-2026-13077",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-13077",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-22T19:12:11.370Z",
    "updatedAt": "2026-07-23T14:19:15.392Z",
    "importedAt": "2026-10-24T01:57:55.771Z",
    "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": "Out-of-Bounds Heap Read in BSON CodeWScope Element Parsing via Malformed BSONColumn Data",
      "summary": "A missing bounds check in the BSON CodeWScope element accessors allows an attacker to trigger an out-of-bounds heap read via a crafted aggregation pipeline. The vulnerability can be exploited by an authenticated user by generating a malformed BSONColumn data containing a CodeWScope element, bypassing wire-level BSON validation. When the forged element is decompressed, the unchecked size value is used in pointer arithmetic, causing either a server crash or disclosure of adjacent heap memory contents.",
      "affected": [
        {
          "vendor": "MongoDB",
          "product": "MongoDB Server",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "7.0.39"
            },
            {
              "version": "8.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "8.0.28"
            },
            {
              "version": "8.2.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "8.2.12"
            },
            {
              "version": "8.3.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "8.3.7"
            }
          ]
        }
      ]
    }
  }
}