{"cve":"CVE-2026-47135","nvd":{"published":"2026-06-12T15:16:28.007","modified":"2026-10-26T11:10:00.157","status":"Deferred","description":"vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, Symbol.for override in setup-sandbox.js only intercepts 2 of 9 dangerous Node.js cross-realm symbols. Combined with the bridge's set/defineProperty/deleteProperty traps having no isDangerousCrossRealmSymbol key check, sandbox code can obtain real cross-realm symbols, write them to host objects, and control host-side behavior — verified with a full util.promisify hijack chain. This issue has been patched in version 3.11.4.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","score":8.7},"cwes":["CWE-693"],"references":["https://github.com/patriksimek/vm2/commit/928aef51898b5c52a05f05a40c4cfeb52e172878","https://github.com/patriksimek/vm2/releases/tag/v3.11.4","https://github.com/patriksimek/vm2/security/advisories/GHSA-m5q2-4fm3-vfqp"],"products":[],"source":"nvd","synced_at":"2026-10-26T11:33:08.859761529+00:00"},"epss":{"cve":"CVE-2026-47135","score":0.00266,"percentile":0.18593,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-m5q2-4fm3-vfqp","url":"https://osv.dev/vulnerability/GHSA-m5q2-4fm3-vfqp","summary":"vm2 has a sandbox escape via unblocked cross-realm Symbol.for keys + missing bridge write-trap symbol checks","modified":"2026-06-12T19:45:09.840803860Z","packages":[{"ecosystem":"npm","name":"vm2","purl":"pkg:npm/vm2","ranges":["<3.11.4"],"fixed":["3.11.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}