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    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-21636",
        "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "state": "PUBLISHED",
        "assignerShortName": "hackerone",
        "dateReserved": "2026-01-01T15:00:02.339Z",
        "datePublished": "2026-01-20T20:41:55.700Z",
        "dateUpdated": "2026-01-21T18:52:53.133Z"
    },
    "containers": {
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                {
                    "lang": "en",
                    "value": "A flaw in Node.js's permission model allows Unix Domain Socket (UDS) connections to bypass network restrictions when `--permission` is enabled. Even without `--allow-net`, attacker-controlled inputs (such as URLs or socketPath options) can connect to arbitrary local sockets via net, tls, or undici/fetch. This breaks the intended security boundary of the permission model and enables access to privileged local services, potentially leading to privilege escalation, data exposure, or local code execution.\n\n* The issue affects users of the Node.js permission model on version v25.\n\nIn the moment of this vulnerability, network permissions (`--allow-net`) are still in the experimental phase."
                }
            ],
            "affected": [
                {
                    "defaultStatus": "unaffected",
                    "vendor": "nodejs",
                    "product": "node",
                    "versions": [
                        {
                            "version": "25.2.1",
                            "status": "affected",
                            "lessThanOrEqual": "25.2.1",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://nodejs.org/en/blog/vulnerability/december-2025-security-releases"
                }
            ],
            "metrics": [
                {
                    "cvssV3_0": {
                        "version": "3.0",
                        "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
                        "baseScore": 5.8,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "providerMetadata": {
                "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
                "shortName": "hackerone",
                "dateUpdated": "2026-01-20T20:41:55.700Z"
            }
        },
        "adp": [
            {
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-284",
                                "lang": "en",
                                "description": "CWE-284 Improper Access Control"
                            }
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-01-21T18:38:13.137061Z",
                                "id": "CVE-2026-21636",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-01-21T18:52:53.133Z"
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