CVE-2026-44008
vm2: Snabox breakout via `neutralizeArraySpeciesBatch`
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
patriksimek
oss-project
vm2Library
OSS Libraries / npmNode.js Foundation
oss-project·USaka nodejs foundation, node foundation
vm2 project
oss-projectaka vm2
vm2Library
OSS Libraries / npmExploitability
Official Patch Available
References
https://github.com/patriksimek/vm2/security/advisories/GHSA-9qj6-qjgg-37qq
github.com
https://access.redhat.com/errata/RHSA-2026:50850
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-44008
access.redhat.com
and 2 more references View all →
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