FastGPT: NoSQL Injection in updatePasswordByOld Leads to Account Takeover_CVE-2026-40352

{
    "lastseen": "",
    "description": "FastGPT is an AI Agent building platform. In versions prior to 4.14.9.5, the password change endpoint is vulnerable to NoSQL injection. An authenticated attacker can bypass the \"old password\" verification by injecting MongoDB query operators. This allows an attacker who has gained a low-privileged session to change the password of their account (or others if combined with ID manipulation) without knowing the current one, leading to full account takeover and persistence. This issue has been fixed in version 4.14.9.5.",
    "published": "2026-04-17T21:09:32.913Z",
    "modified": "2026-04-17T21:09:32.913Z",
    "type": "cve",
    "title": "FastGPT: NoSQL Injection in updatePasswordByOld Leads to Account Takeover",
    "source": "GitHub_M",
    "references": "https://github.com/labring/FastGPT/security/advisories/GHSA-422w-vrfj-72g6\nhttps://github.com/labring/FastGPT/commit/bd966d479fbe414d02679cf79f9eaaab3d100a2d\nhttps://github.com/labring/FastGPT/releases/tag/v4.14.9.5",
    "id": "CVE-2026-40352",
    "bulletinFamily": "",
    "cwe": [
        "CWE-943"
    ],
    "cvelist": null,
    "sourceData": "labring FastGPT < 4.14.9.5",
    "sourceHref": "",
    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "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": "FastGPT",
    "version": "< 4.14.9.5",
    "vendor": "labring",
    "ai_description": "NoSQL injection vulnerability in the password change endpoint, allowing authenticated attackers to bypass old password verification and take over accounts.",
    "ai_severity": "High",
    "ai_vendor": "labring",
    "ai_product": "FastGPT",
    "ai_version": "< 4.14.9.5",
    "ai_score": 8.8
}