Insufficient isolation of JavaScript (Duktape) execution context on Zabbix Server_CVE-2026-23919

{
    "lastseen": "",
    "description": "For performance reasons Zabbix Server/Proxy reuses JavaScript (Duktape) contexts (used in script items, JavaScript reprocessing, Webhooks). This can lead to confidentiality loss where a regular (non-super) Zabbix administrator leaks data for hosts they do not have access to. A fix has been released that makes the built in Zabbix JavaScript objects read-only, but please be advised that usage of global JavaScript variables is not recommended because their content could be leaked. More information <a href='https://www.zabbix.com/documentation/7.4/en/manual/installation/known_issues#preprocessing-global-variables-are-unsafe'>in Zabbix documentation</a>.",
    "published": "2026-03-24T18:26:43.877Z",
    "modified": "2026-03-24T18:36:16.860Z",
    "type": "cve",
    "title": "Insufficient isolation of JavaScript (Duktape) execution context on Zabbix Server",
    "source": "Zabbix",
    "references": "https://support.zabbix.com/browse/ZBX-27638",
    "id": "CVE-2026-23919",
    "bulletinFamily": "",
    "cwe": [
        "CWE-488"
    ],
    "cvelist": null,
    "sourceData": "Zabbix Zabbix 6.0.0\nZabbix Zabbix 7.0.0\nZabbix Zabbix 7.2.0\nZabbix Zabbix 7.4.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:A/AC:L/AT:P/PR:H/UI:N/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L",
        "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": "Zabbix",
    "version": "6.0.0",
    "vendor": "Zabbix",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}