Server crash via malformed binary diff passed to $_internalApplyOplogUpdate._CVE-2026-9753

{
    "lastseen": "",
    "description": "The $_internalApplyOplogUpdate aggregation pipeline stage can be used to execute a document diff containing a malformed binary diff to return memory out-of-bounds or crash the server. $_internalApplyOplogUpdate can be executed by any authenticated user with access to the aggregate command.",
    "published": "2026-06-09T22:30:57.171Z",
    "modified": "2026-06-09T22:35:54.145Z",
    "type": "cve",
    "title": "Server crash via malformed binary diff passed to $_internalApplyOplogUpdate.",
    "source": "mongodb",
    "references": "https://jira.mongodb.org/browse/SERVER-124959",
    "id": "CVE-2026-9753",
    "bulletinFamily": "",
    "cwe": [
        "CWE-1287"
    ],
    "cvelist": null,
    "sourceData": "MongoDB MongoDB Server 8.3.0\nMongoDB MongoDB Server 8.2.0\nMongoDB MongoDB Server 8.0.0\nMongoDB MongoDB Server 7.0.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.2,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
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            "privilegesRequired": "",
            "userInteraction": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "MongoDB Server",
    "version": "8.3.0",
    "vendor": "MongoDB",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}