CVE-2026-44009

const {VM} = require('vm2'); const vm = new VM(); // Malicious code to escape the sandbox const maliciousCode = ` const exception = Error(); // Manipulate internal stack or properties to break out exception.stack; // Hypothetical payload to access host process this.process.binding('fs').readfile('/etc/passwd'); `; try { console.log(vm.run(maliciousCode)); } catch (e) { console.log('Exploit failed'); }

{"cve": {"id": "CVE-2026-44009", "sourceIdentifier": "[email protected]", "published": "2026-05-13T18:16:17.803", "lastModified": "2026-05-14T15:17:22.300", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.2, This vulnerability is fixed in 3.11.2."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-668"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "3.11.2", "matchCriteriaId": "9CB5A61C-3393-4F75-B18E-40EB5A69165C"}]}]}], "references": [{"url": "https://github.com/patriksimek/vm2/security/advisories/GHSA-9vg3-4rfj-wgcm", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/patriksimek/vm2/security/advisories/GHSA-9vg3-4rfj-wgcm", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}