CVE-2026-44008

critical

Description

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.

References

https://thehackernews.com/2026/05/vm2-nodejs-library-vulnerabilities.html

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44008.json

https://github.com/patriksimek/vm2/security/advisories/GHSA-9qj6-qjgg-37qq

https://bugzilla.redhat.com/show_bug.cgi?id=2477201

https://access.redhat.com/security/cve/CVE-2026-44008

Details

Source: Mitre, NVD

Published: 2026-05-13

Updated: 2026-06-30

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.0007