Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/342708?format=api",
    "vulnerability_id": "VCID-1112-nbsn-jygx",
    "summary": "Using string formatting and exception handling, an attacker may bypass n8n's python-task-executor sandbox restrictions and run arbitrary unrestricted Python code in the underlying operating system.\n\nThe vulnerability can be exploited via the Code block by an authenticated user with basic permissions and can lead to a full n8n instance takeover on instances operating under \"Internal\" execution mode.\n\nIf the instance is operating under the  \"External\" execution mode (ex. n8n's official Docker image) - arbitrary code execution occurs inside a Sidecar container and not the main node, which significantly reduces the vulnerability impact.",
    "aliases": [
        {
            "alias": "CVE-2026-0863"
        }
    ],
    "fixed_packages": [],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-0863",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00033",
                    "scoring_system": "epss",
                    "scoring_elements": "0.09717",
                    "published_at": "2026-04-13T12:55:00Z"
                },
                {
                    "value": "0.00033",
                    "scoring_system": "epss",
                    "scoring_elements": "0.09753",
                    "published_at": "2026-04-09T12:55:00Z"
                },
                {
                    "value": "0.00033",
                    "scoring_system": "epss",
                    "scoring_elements": "0.09766",
                    "published_at": "2026-04-11T12:55:00Z"
                },
                {
                    "value": "0.00033",
                    "scoring_system": "epss",
                    "scoring_elements": "0.09733",
                    "published_at": "2026-04-12T12:55:00Z"
                },
                {
                    "value": "0.00033",
                    "scoring_system": "epss",
                    "scoring_elements": "0.09678",
                    "published_at": "2026-04-02T12:55:00Z"
                },
                {
                    "value": "0.00033",
                    "scoring_system": "epss",
                    "scoring_elements": "0.09729",
                    "published_at": "2026-04-04T12:55:00Z"
                },
                {
                    "value": "0.00033",
                    "scoring_system": "epss",
                    "scoring_elements": "0.09634",
                    "published_at": "2026-04-07T12:55:00Z"
                },
                {
                    "value": "0.00033",
                    "scoring_system": "epss",
                    "scoring_elements": "0.09704",
                    "published_at": "2026-04-08T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-0863"
        },
        {
            "reference_url": "https://github.com/n8n-io/n8n/commit/b73a4283cb14e0f27ce19692326f362c7bf3da02",
            "reference_id": "b73a4283cb14e0f27ce19692326f362c7bf3da02",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.5",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2026-01-20T16:42:52Z/"
                }
            ],
            "url": "https://github.com/n8n-io/n8n/commit/b73a4283cb14e0f27ce19692326f362c7bf3da02"
        },
        {
            "reference_url": "https://research.jfrog.com/vulnerabilities/n8n-python-runner-sandbox-escape-jfsa-2026-001651077/",
            "reference_id": "n8n-python-runner-sandbox-escape-jfsa-2026-001651077",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.5",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2026-01-20T16:42:52Z/"
                }
            ],
            "url": "https://research.jfrog.com/vulnerabilities/n8n-python-runner-sandbox-escape-jfsa-2026-001651077/"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 95,
            "name": "Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')",
            "description": "The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes code syntax before using the input in a dynamic evaluation call (e.g. eval)."
        }
    ],
    "exploits": [],
    "severity_range_score": "8.5 - 8.5",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-1112-nbsn-jygx"
}