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CVE-2026-44001

Vm2 vulnerability

8.6 HIGHPublic exploitEPSS 0.66%
  1. Published13 May 2026

Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox escape vulnerability in vm2 v3.10.5 allows any sandboxed code to crash the host Node.js process via a single Promise constructor that triggers an unhandled rejection propagating to the host. The fix for CVE-2026-22709 (v3.10.2) only sanitized the onRejected callback in .then() and .catch() overrides and did not address the executor-to-unhandledRejection path. This vulnerability is fixed in 3.11.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Affected products

Vm2< 3.11.0

Remediation

Fixed in
Vm2≥ 3.11.0

References

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Frequently asked

Is CVE-2026-44001 being actively exploited?

CVE-2026-44001 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.66%.

How severe is CVE-2026-44001?

CVE-2026-44001 has a CVSS 3.1 base score of 8.6, rated high. EPSS estimates a 0.66% probability of exploitation.

Which products are affected by CVE-2026-44001?

Affected products include Vm2.

How do I fix CVE-2026-44001?

Upgrade affected software to a fixed version, for example Vm2 3.11.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-44001 against the real software inventory on every managed device, every day. 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.