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CVE-2026-44008

9.8 critical SSVC exploitation: poc Modified
NVD · CVE.org

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.2, the new method neutralizeArraySpeciesBatch works with objects from the other side but can call into this side via getter on the array prototype exposing objects of the wrong side into the sandbox. This can be used to get host objects and get the host Function object. This allows attackers to write code which can escape from the VM2 sandbox and execute arbitrary commands on the host system. This vulnerability is fixed in 3.11.2.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 9.8 · vm2_projectNVD modified 2026-10-26 17:10

Affected (CPE criteria) 1

  • cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:*

References 5