Flight: Path traversal in `make:controller` CLI creates arbitrary directories outside project root_CVE-2026-42549

{
    "lastseen": "",
    "description": "Flight is an extensible micro-framework for PHP. Prior to 3.18.1, the make:controller CLI command calls mkdir(..., recursive: true) on a path built from the user-supplied controller name, before Nette's class-name validation runs. The class-file write is correctly rejected by Nette when the name contains /, but the recursive directory creation side effect is already committed \u2014 including directories located outside the project root through ../ traversal. This vulnerability is fixed in 3.18.1.",
    "published": "2026-05-13T19:22:20.932Z",
    "modified": "2026-05-13T19:22:20.932Z",
    "type": "cve",
    "title": "Flight: Path traversal in `make:controller` CLI creates arbitrary directories outside project root",
    "source": "GitHub_M",
    "references": "https://github.com/flightphp/core/security/advisories/GHSA-3xjv-pmf2-gf2q",
    "id": "CVE-2026-42549",
    "bulletinFamily": "",
    "cwe": [
        "CWE-22"
    ],
    "cvelist": null,
    "sourceData": "flightphp core < 3.18.1",
    "sourceHref": "",
    "cvss": {
        "score": 4.4,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
        "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": "core",
    "version": "< 3.18.1",
    "vendor": "flightphp",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}