Calling createIndex with certain index types can crash mongod_CVE-2026-8843

{
    "lastseen": "",
    "description": "Creating a \"2dsphere_bucket\" index on a non-timeseries bucket collection will succeed, but any subsequent attempt to insert a document which triggers updating that index will crash the server. A similar issue occurs when creating \"queryable_encrypted_range\" indices.\n\nThis issue affects MongoDB Server v7.0 versions prior to 7.0.32, v8.0 versions prior to 8.0.21 and v8.2 versions prior to 8.2.6",
    "published": "2026-05-18T15:40:06.265Z",
    "modified": "2026-05-18T15:40:06.265Z",
    "type": "cve",
    "title": "Calling createIndex with certain index types can crash mongod",
    "source": "mongodb",
    "references": "https://jira.mongodb.org/browse/SERVER-116327",
    "id": "CVE-2026-8843",
    "bulletinFamily": "",
    "cwe": [
        "CWE-617"
    ],
    "cvelist": null,
    "sourceData": "MongoDB, Inc. MongoDB Server 7.0\nMongoDB, Inc. MongoDB Server 8.0\nMongoDB, Inc. MongoDB Server 8.2",
    "sourceHref": "",
    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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            "baseScore": 0,
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "MongoDB Server",
    "version": "7.0",
    "vendor": "MongoDB, Inc.",
    "ai_description": "",
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    "ai_score": 0
}