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CVE-2026-44008

Vm2 remote code execution

9.8 CRITICALPublic exploitEPSS 0.90%
  1. Published13 May 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Vm2< 3.11.2

Remediation

Fixed in
Vm2≥ 3.11.2

References

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Frequently asked

Is CVE-2026-44008 being actively exploited?

CVE-2026-44008 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.90%.

How severe is CVE-2026-44008?

CVE-2026-44008 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.90% probability of exploitation.

Which products are affected by CVE-2026-44008?

Affected products include Vm2.

How do I fix CVE-2026-44008?

Upgrade affected software to a fixed version, for example Vm2 3.11.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-44008 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.