Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API_CVE-2026-4502

{
    "lastseen": "",
    "description": "IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send\u00a0a specially crafted URL request containing \"dot dot\" sequences (/../) to write arbitrary files on the system.",
    "published": "2026-04-30T20:57:08.130Z",
    "modified": "2026-04-30T20:57:08.130Z",
    "type": "cve",
    "title": "Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API",
    "source": "ibm",
    "references": "https://www.ibm.com/support/pages/node/7271097",
    "id": "CVE-2026-4502",
    "bulletinFamily": "",
    "cwe": [
        "CWE-22"
    ],
    "cvelist": null,
    "sourceData": "IBM Langflow Desktop 1.2.0",
    "sourceHref": "",
    "cvss": {
        "score": 6.5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Langflow Desktop",
    "version": "1.2.0",
    "vendor": "IBM",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
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    "ai_score": 0
}