{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-25586",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-02-03T01:02:46.715Z",
        "datePublished": "2026-02-06T19:54:38.446Z",
        "dateUpdated": "2026-02-06T20:17:19.095Z"
    },
    "containers": {
        "cna": {
            "title": "SandboxJS has a Sandbox Escape via Prototype Whitelist Bypass and Host Prototype Pollution",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-74",
                            "lang": "en",
                            "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 10,
                        "baseSeverity": "CRITICAL",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/nyariv/SandboxJS/security/advisories/GHSA-jjpw-65fv-8g48",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/nyariv/SandboxJS/security/advisories/GHSA-jjpw-65fv-8g48"
                },
                {
                    "name": "https://github.com/nyariv/SandboxJS/commit/67cb186c41c78c51464f70405504e8ef0a6e43c3",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/nyariv/SandboxJS/commit/67cb186c41c78c51464f70405504e8ef0a6e43c3"
                }
            ],
            "affected": [
                {
                    "vendor": "nyariv",
                    "product": "SandboxJS",
                    "versions": [
                        {
                            "version": "< 0.8.29",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-02-06T19:54:38.446Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, a sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to __proto__ and other blocked prototype properties, enabling host Object.prototype pollution and persistent cross-sandbox impact. This vulnerability is fixed in 0.8.29."
                }
            ],
            "source": {
                "advisory": "GHSA-jjpw-65fv-8g48",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/nyariv/SandboxJS/security/advisories/GHSA-jjpw-65fv-8g48",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-02-06T20:17:14.791538Z",
                                "id": "CVE-2026-25586",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-02-06T20:17:19.095Z"
                }
            }
        ]
    }
}