Langflow: Unauthenticated RCE in Shareable Playgrounds_CVE-2026-48519

{
    "lastseen": "",
    "description": "Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the \"Shareable Playground\" (or \"Public Flows\" in code) contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessing a link. Specifically, it enables the route /api/v1/build_public_tmp to execute any public flow, given a public flow ID. When the route executes the flow, it allows for providing arbitrary custom Python code as the nodes code, inside the JSON payload. The vulnerable field is data.nodes[X].data.node.template.code.value. This vulnerability is fixed in 1.9.2.",
    "published": "2026-06-23T16:25:09.927Z",
    "modified": "2026-06-23T17:02:49.695Z",
    "type": "cve",
    "title": "Langflow: Unauthenticated RCE in Shareable Playgrounds",
    "source": "GitHub_M",
    "references": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-v5ff-9q35-q26f",
    "id": "CVE-2026-48519",
    "bulletinFamily": "",
    "cwe": [
        "CWE-94"
    ],
    "cvelist": null,
    "sourceData": "langflow-ai langflow < 1.9.2",
    "sourceHref": "",
    "cvss": {
        "score": 9.6,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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": "langflow",
    "version": "< 1.9.2",
    "vendor": "langflow-ai",
    "ai_description": "Unauthenticated Remote Code Execution in Shareable Playgrounds",
    "ai_severity": "Critical",
    "ai_vendor": "Langflow AI",
    "ai_product": "Langflow",
    "ai_version": "< 1.9.2",
    "ai_score": 9.6
}