Parse Server: Protected field change detection oracle via LiveQuery watch parameter_CVE-2026-33429

{
    "lastseen": "",
    "description": "Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.54 and 9.6.0-alpha.43, an attacker can subscribe to LiveQuery with a watch parameter targeting a protected field. Although the protected field value is properly stripped from event payloads, the presence or absence of update events reveals whether the protected field changed, creating a binary oracle. For boolean protected fields, the timing of change events is equivalent to knowing the field value. This issue has been patched in versions 8.6.54 and 9.6.0-alpha.43.",
    "published": "2026-03-24T18:16:35.414Z",
    "modified": "2026-03-25T13:34:05.792Z",
    "type": "cve",
    "title": "Parse Server: Protected field change detection oracle via LiveQuery watch parameter",
    "source": "GitHub_M",
    "references": "https://github.com/parse-community/parse-server/security/advisories/GHSA-qpc3-fg4j-8hgm\nhttps://github.com/parse-community/parse-server/pull/10253\nhttps://github.com/parse-community/parse-server/pull/10254\nhttps://github.com/parse-community/parse-server/commit/0c0a0a5a37ca821d2553119f2cb3be35322eda4b\nhttps://github.com/parse-community/parse-server/commit/c62eacaf38de86913f09240583448360b1cc8e67",
    "id": "CVE-2026-33429",
    "bulletinFamily": "",
    "cwe": [
        "CWE-203"
    ],
    "cvelist": null,
    "sourceData": "parse-community parse-server < 8.6.54\nparse-community parse-server >= 9.0.0, < 9.6.0-alpha.43",
    "sourceHref": "",
    "cvss": {
        "score": 6.3,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/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": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "parse-server",
    "version": "< 8.6.54",
    "vendor": "parse-community",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}