CVE-2026-47131

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{"affected": [{"affectedData": [{"product": "vm2", "vendor": "patriksimek", "versions": [{"status": "affected", "version": "< 3.11.4"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, by combining Buffer.call.call({}.__lookupGetter__, Buffer, \"__proto__\"), Buffer.call.call({}.__lookupSetter__, Buffer, \"__proto__\"), and Node.js's ERR_INVALID_ARG_TYPE Error, the host's TypeError constructor can be obtained, which allows the escape from the sandbox. This allows attackers to run arbitrary code. This issue has been patched in version 3.11.4."}, {"lang": "es", "value": "vm2 es una vm/sandbox de c\u00f3digo abierto para Node.js. Antes de la versi\u00f3n 3.11.4, al combinar Buffer.call.call({}.__lookupGetter__, Buffer, \u2019__proto__\u2019), Buffer.call.call({}.__lookupSetter__, Buffer, \u2019__proto__\u2019), y el Error ERR_INVALID_ARG_TYPE de Node.js, se puede obtener el constructor TypeError del host, lo que permite el escape de la sandbox. Esto permite a los atacantes ejecutar c\u00f3digo arbitrario. Este problema ha sido parcheado en la versi\u00f3n 3.11.4."}], "id": "CVE-2026-47131", "lastModified": "2026-10-26T11:10:00.157", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "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"}, "exploitabilityScore": 3.9, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-47131", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-12T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-06-12T15:16:27.870", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/patriksimek/vm2/commit/27c525f4615e2b983f122e2bed327d810126f5c8"}, {"source": "security-advisories@github.com", "url": "https://github.com/patriksimek/vm2/releases/tag/v3.11.4"}, {"source": "security-advisories@github.com", "url": "https://github.com/patriksimek/vm2/security/advisories/GHSA-v6mx-mf47-r5wg"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/patriksimek/vm2/security/advisories/GHSA-v6mx-mf47-r5wg"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-913"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "vm2: vm2: Arbitrary code execution via sandbox escape vulnerability", "id": "2488393", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488393"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L", "status": "draft"}, "cwe": "CWE-843", "details": ["A flaw was found in vm2, an open-source virtual machine (VM) sandbox for Node.js. A remote attacker can exploit this vulnerability by combining specific Buffer function calls and Node.js's ERR_INVALID_ARG_TYPE error. This allows the attacker to obtain the host's TypeError constructor, leading to an escape from the sandbox. Consequently, this enables attackers to run arbitrary code on the host system."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-47131", "package_state": [{"cpe": "cpe:/a:redhat:rhdh:1", "fix_state": "Affected", "impact": "low", "package_name": "rhdh/rhdh-hub-rhel9", "product_name": "Red Hat Developer Hub"}, {"cpe": "cpe:/a:redhat:ansible_portal:2", "fix_state": "Under investigation", "package_name": "ansible-automation-platform/automation-portal", "product_name": "Self-service automation portal 2"}], "public_date": "2026-06-12T14:14:17Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-47131\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-47131\nhttps://github.com/patriksimek/vm2/commit/27c525f4615e2b983f122e2bed327d810126f5c8\nhttps://github.com/patriksimek/vm2/releases/tag/v3.11.4\nhttps://github.com/patriksimek/vm2/security/advisories/GHSA-v6mx-mf47-r5wg"], "statement": "The Red Hat Product Security team has rated the impact of this vulnerability as Moderate in Red Hat Developer Hub and Ansible Automation Platform.The affected package is present in both products as a transitive dependency; however, the vulnerable sandbox functionality is not invoked in any production code path. The active sandboxing mechanism used by both products does not rely on this package, and user-supplied input cannot reach the vulnerable code under a standard deployment. Exploitation would require an attacker to independently route arbitrary JavaScript into the sandbox runtime, a condition not present in the default configuration of either product.", "threat_severity": "Moderate"}

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