OpenS100 Portrayal Engine Unrestricted Lua Standard Library Access_CVE-2026-22208

{
    "lastseen": "",
    "description": "OpenS100 (the reference implementation S-100 viewer) prior to commit 753cf29 contain a remote code execution vulnerability via an unrestricted Lua interpreter. The Portrayal Engine initializes Lua using luaL_openlibs() without sandboxing or capability restrictions, exposing standard libraries such as 'os' and 'io' to untrusted portrayal catalogues. An attacker can provide a malicious S-100 portrayal catalogue containing Lua scripts that execute arbitrary commands with the privileges of the OpenS100 process when a user imports the catalogue and loads a chart.",
    "published": "2026-02-17T14:29:05.423Z",
    "modified": "2026-02-17T14:43:43.158Z",
    "type": "cve",
    "title": "OpenS100 Portrayal Engine Unrestricted Lua Standard Library Access",
    "source": "VulnCheck",
    "references": "https://www.mdpi.com/1424-8220/26/4/1246\nhttps://github.com/S-100ExpertTeam/OpenS100/commit/753cf294434e8d3961f20a567c4d99151e3b530d\nhttps://www.vulncheck.com/advisories/opens100-portrayal-engine-unrestricted-lua-standard-library-access",
    "id": "CVE-2026-22208",
    "bulletinFamily": "",
    "cwe": [
        "CWE-749",
        "CWE-829"
    ],
    "cvelist": null,
    "sourceData": "OpenS100 Project OpenS100 0",
    "sourceHref": "",
    "cvss": {
        "score": 9.4,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/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": "OpenS100",
    "version": "0",
    "vendor": "OpenS100 Project",
    "ai_description": "Remote code execution vulnerability via unrestricted Lua interpreter in OpenS100 Portrayal Engine",
    "ai_severity": "Critical",
    "ai_vendor": "OpenS100 Project",
    "ai_product": "OpenS100",
    "ai_version": "0",
    "ai_score": 9.4
}