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CVE-2026-44001

vm2: Sandbox Escape via Promise Constructor Unhandled Rejection (Process Crash DoS)

Published: May 13, 2026Updated: Aug 6, 2026 Sources: CVE List NVD BDUCWE-248
8.6HIGH
NVD MITRE
EPSS Score
0.4%
Top 63.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-248

Affected Products

Node.js Foundation
oss-project·USaka node foundation, nodejs foundation
vm2
OSS Libraries
vm2 project
oss-projectaka vm2
vm2Library
OSS Libraries / npm
patriksimek
oss-project
vm2Library
OSS Libraries / npm

Exploitability

Official Patch Available
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References

https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjh
github.com
https://access.redhat.com/errata/RHSA-2026:50850
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-44001
access.redhat.com
and 2 more references View all →

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