Is CVE-2026-47686 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-47686?

CVE-2026-47686 has a CVSS v3 severity of CRITICAL (9.9).

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CVE-2026-47686

Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, handleException() in lib/setup-sandbox.js sanitizes SuppressedError.error, SuppressedError.suppressed, and AggregateError.errors but does not sanitize Error.cause, allowing sandbox code to obtain a powerful host object such as process from an embedder-exposed host function that throws an error with that object as its cause and then execute arbitrary host commands. This issue is fixed in version 3.11.6.