Rocket.Chat: Authenticated Arbitrary Data Export Theft via Mass Assignment in sendFileMessage_CVE-2026-45687

{
    "lastseen": "",
    "description": "Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11, Rocket.Chat's sendFileMessage DDP method passes the entire attacker-supplied file object into Uploads.updateFileComplete, which merges it directly into a MongoDB $set update via Object.assign. There is no allow-list of writable fields. An attacker can therefore rewrite any column on their own upload record, notably store and the store-specific path fields. This vulnerability is fixed in 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11.",
    "published": "2026-06-24T20:55:25.918Z",
    "modified": "2026-06-24T20:55:25.918Z",
    "type": "cve",
    "title": "Rocket.Chat: Authenticated Arbitrary Data Export Theft via Mass Assignment in sendFileMessage",
    "source": "GitHub_M",
    "references": "https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-fhc2-x8cp-c5ch",
    "id": "CVE-2026-45687",
    "bulletinFamily": "",
    "cwe": [
        "CWE-915"
    ],
    "cvelist": null,
    "sourceData": "RocketChat Rocket.Chat >= 8.5.0-rc.0, < 8.5.0\nRocketChat Rocket.Chat >= 8.4.0-rc.0, < 8.4.1\nRocketChat Rocket.Chat >= 8.3.0-rc.0, < 8.3.3\nRocketChat Rocket.Chat >= 8.2.0-rc.0, < 8.2.3\nRocketChat Rocket.Chat >= 8.1.0-rc.0, < 8.1.4\nRocketChat Rocket.Chat >= 8.0.0-rc.0, < 8.0.5\nRocketChat Rocket.Chat >= 7.11.0-rc.0, < 7.13.7\nRocketChat Rocket.Chat < 7.10.11",
    "sourceHref": "",
    "cvss": {
        "score": 8.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Rocket.Chat",
    "version": ">= 8.5.0-rc.0, < 8.5.0",
    "vendor": "RocketChat",
    "ai_description": "Authenticated arbitrary data export theft via mass assignment in sendFileMessage",
    "ai_severity": "High",
    "ai_vendor": "RocketChat",
    "ai_product": "Rocket.Chat",
    "ai_version": "8.5.0-rc.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, 7.10.11",
    "ai_score": 8.5
}