{"id":"CVE-2026-92948","title":"vm2 versions >= 3.9.6 and <= 3.11.6 are affected by a NodeVM builtin allowlist bypass that permits a sandbox escape on Node.js 24 and newer when the embedder explicitly allows the node:test builtin (e.g","summary":"vm2 versions >= 3.9.6 and <= 3.11.6 are affected by a NodeVM builtin allowlist bypass that permits a sandbox escape on Node.js 24 and newer when the embedder explicitly allows the node:test builtin (e.g. require: { builtin: ['node:test']…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-693"],"vendor":"patriksimek","product":"vm2","affected":["vm2 >= 3.9.6 < 3.11.7"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T20:17:30.980","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92948","references":[{"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-qhwx-74w5-xhxq","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/vm2-3.9.6-through-3.11.5-sandbox-escape-via-node-test","label":"disclosure@vulncheck.com"},{"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-qhwx-74w5-xhxq","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-18T19:31:46.698017Z"},"epss":0.00448,"epssPercentile":0.38227,"ingestedAt":"2026-09-17T14:19:30.987Z","slug":"CVE-2026-92948","body":"## Overview\n\nvm2 versions >= 3.9.6 and <= 3.11.6 are affected by a NodeVM builtin allowlist bypass that permits a sandbox escape on Node.js 24 and newer when the embedder explicitly allows the node:test builtin (e.g. require: { builtin: ['node:test'] }). On Node.js 24+, module.builtinModules exposes the scheme-only key node:test, which is not covered by vm2's family-based DANGEROUS_BUILTINS protection, so it is stored in the generic host-passthrough loader. Because requireImpl() in lib/setup-node-sandbox.js strips a single 'node:' prefix before the builtin lookup, sandbox code calling require('node:node:test') resolves to the stored node:test key and receives a readonly proxy to the host module. Calls to node:test.run() are forwarded to the host implementation, which spawns a separate Node process for process-isolated test execution and passes through attacker-controlled execArgv values; supplying --eval=<JavaScript> therefore executes arbitrary JavaScript in an unrestricted host Node process outside the NodeVM sandbox. Fixed in vm2 3.11.7.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":67,"depthScoreParts":{"impact":54.5,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":207477,"id":"CVE-2026-92948","ts":1789761069006,"field":"exploit_available","old":"false","new":"true"}]}