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CVE-2026-47135

HIGH
8.7
CVSS Severity Score
EPSS Score0.0960%
EPSS Percentile31.77th
PublishedJun 12, 2026
Last ModifiedJun 12, 2026

Vulnerability 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.

Affected Platforms (CPE)

No CPE configurations currently published for this record.

References & Advisories

🔗 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

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