CVE-2026-44001

Name: CVE-2026-44001
Creator: NVD / NIST
Published: 2026-05-13T18:16:16.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2026-44001 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. 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. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.6/10

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

EPSS Probability

0.34%

25.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-248

Affected Software

Vendor	Product	Versions
Vm2 Project	Vm2	< 3.11.0

References

https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjhExploit, Vendor Advisory
https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjhExploit, Vendor Advisory

Timeline

Published: May 13, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-44001?

How severe is CVE-2026-44001?

CVE-2026-44001 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2026-44001?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-44001?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST