MaxKB: Broken Access Control in MaxKB OSS URL Fetch API_CVE-2026-42337

{
    "lastseen": "",
    "description": "MaxKB is an open-source AI assistant for enterprise. MaxKB 2.8.0 and prior are vulnerable to a broken access control vulnerability in the OSS file service URL fetch API (chat/api/oss/get_url). The endpoint uses application_id from the URL path without validating ownership, allowing attackers to perform operations under other applications\u2019 policies. This vulnerability is fixed in 2.8.1.",
    "published": "2026-05-26T20:19:40.844Z",
    "modified": "2026-05-26T20:19:40.844Z",
    "type": "cve",
    "title": "MaxKB: Broken Access Control in MaxKB OSS URL Fetch API",
    "source": "GitHub_M",
    "references": "https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-2jmj-gwvg-3gp2",
    "id": "CVE-2026-42337",
    "bulletinFamily": "",
    "cwe": [
        "CWE-862"
    ],
    "cvelist": null,
    "sourceData": "1Panel-dev MaxKB < 2.8.1",
    "sourceHref": "",
    "cvss": {
        "score": 5.3,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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": "MaxKB",
    "version": "< 2.8.1",
    "vendor": "1Panel-dev",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}