CVE-2026-44001

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

8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-25)

CWE

CWE-248

Published

2026-05-13

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• vm2_project:vm2

Packages (OSV)

References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjh
• https://access.redhat.com/errata/RHSA-2026:50850
• https://access.redhat.com/security/cve/CVE-2026-44001
• https://bugzilla.redhat.com/show_bug.cgi?id=2477208
• https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjh

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