SandboxJS has a Sandbox Escape_CVE-2026-25520

{
    "lastseen": "",
    "description": "SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, The return values of functions aren't wrapped. Object.values/Object.entries can be used to get an Array containing the host's Function constructor, by using Array.prototype.at you can obtain the hosts Function constructor, which can be used to execute arbitrary code outside of the sandbox. This vulnerability is fixed in 0.8.29.",
    "published": "2026-02-06T19:53:24.219Z",
    "modified": "2026-02-06T20:18:08.646Z",
    "type": "cve",
    "title": "SandboxJS has a Sandbox Escape",
    "source": "GitHub_M",
    "references": "https://github.com/nyariv/SandboxJS/security/advisories/GHSA-58jh-xv4v-pcx4\nhttps://github.com/nyariv/SandboxJS/commit/67cb186c41c78c51464f70405504e8ef0a6e43c3",
    "id": "CVE-2026-25520",
    "bulletinFamily": "",
    "cwe": [
        "CWE-74"
    ],
    "cvelist": null,
    "sourceData": "nyariv SandboxJS < 0.8.29",
    "sourceHref": "",
    "cvss": {
        "score": 10,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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": "SandboxJS",
    "version": "< 0.8.29",
    "vendor": "nyariv",
    "ai_description": "Sandbox escape vulnerability in SandboxJS prior to 0.8.29 allows arbitrary code execution outside of the sandbox",
    "ai_severity": "Critical",
    "ai_vendor": "nyariv",
    "ai_product": "SandboxJS",
    "ai_version": "< 0.8.29",
    "ai_score": 10
}