CVE CVE-2026-47135

CVE-2026-47135

Node.js

Severity: HIGH
CVSS: 8.7CVSS
Published: 2026-06-12
Last modified: 2026-06-12
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
CWE: CWE-693

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.

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

Summary

Description

References