Arbitrary Code Execution in vm2 Sandbox for Node.js by Patrik Simek
CVE-2026-26332

9.8CRITICAL

Key Information:

Vendor

Patriksimek

Status
Vm2
Vendor
CVE Published:
4 May 2026

What is CVE-2026-26332?

The vm2 library, a widely-used open-source virtualization and sandboxing solution for Node.js, was found to have a serious security flaw prior to version 3.11.0. This vulnerability, identified as SuppressedError, allowed malicious actors to escape the protective confines of the sandbox, resulting in the potential for arbitrary code execution on the host system. This issue posed significant risks for applications relying on vm2 for safe execution of untrusted code. The vulnerability has been effectively addressed in version 3.11.0, which users are strongly encouraged to upgrade to.

Affected Version(s)

vm2 < 3.11.0

References

https://github.com/patriksimek/vm2/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/patriksimek/vm2/releases/tag/v3.11.0
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.