Lupa has a Sandbox escape and RCE due to incomplete attribute_filter enforcement in getattr / setattr_CVE-2026-34444

{
    "lastseen": "",
    "description": "Lupa integrates the runtimes of Lua or LuaJIT2 into CPython. In 2.6 and earlier, attribute_filter is not consistently applied when attributes are accessed through built-in functions like getattr and setattr. This allows an attacker to bypass the intended restrictions and eventually achieve arbitrary code execution.",
    "published": "2026-04-06T15:30:30.525Z",
    "modified": "2026-04-06T18:37:15.583Z",
    "type": "cve",
    "title": "Lupa has a Sandbox escape and RCE due to incomplete attribute_filter enforcement in getattr / setattr",
    "source": "GitHub_M",
    "references": "https://github.com/scoder/lupa/security/advisories/GHSA-69v7-xpr6-6gjm",
    "id": "CVE-2026-34444",
    "bulletinFamily": "",
    "cwe": [
        "CWE-284",
        "CWE-639"
    ],
    "cvelist": null,
    "sourceData": "scoder lupa <= 2.6",
    "sourceHref": "",
    "cvss": {
        "score": 7.9,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H",
        "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": "lupa",
    "version": "<= 2.6",
    "vendor": "scoder",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}