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CVE-2026-47686 is a sandbox-escape vulnerability in vm2, a Node.js sandbox library, affecting versions earlier than 3.11.6. The handleException() function sanitizes SuppressedError.error, SuppressedError.suppressed, and AggregateError.errors but fails to sanitize Error.cause. When an embedder-exposed host function throws an error whose cause references a powerful host object, sandboxed code can obtain that object and use it to execute arbitrary commands on the host. Version 3.11.6 fixes the vulnerability.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical sandbox escape vulnerability in the vm2 Node.js sandbox library before version 3.11.6. Failure to sanitize Error.cause can expose privileged host objects when an embedder-exposed host function throws an error containing such an object, enabling sandboxed code to execute arbitrary host commands. The reported CVSS v3 base score is 9.9.
A sandbox escape vulnerability in vm2 for Node.js caused by improper sanitization of Error.cause in handleException(), allowing arbitrary host command execution from sandboxed code.
A critical vm2 Node.js sandbox escape vulnerability. Improper sanitization of Error.cause permits sandboxed code to access a powerful host object, such as process, and execute arbitrary commands on the host. It affects vm2 versions before 3.11.6.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.