Code Execution Vulnerability in vm2 by Patrik Simek
CVE-2026-22709

9.8CRITICAL

Key Information:

Vendor

Patriksimek

Status
Vm2
Vendor
CVE Published:
26 January 2026

What is CVE-2026-22709?

In vm2 versions prior to 3.10.2, a significant vulnerability exists that allows the bypass of sanitization for Promise.prototype.then and Promise.prototype.catch callbacks. This flaw enables attackers to escape the sandboxed environment, leading to the execution of arbitrary code. The issue is rooted in the lack of sanitization for the global promise callbacks, while local promise callbacks were adequately protected. An update to version 3.10.2 resolves this critical security lapse.

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Affected Version(s)

vm2 < 3.10.2

References

https://github.com/patriksimek/vm2/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/patriksimek/vm2/commit/4b009c2d4b1131c...
x_refsource_MISC
https://github.com/patriksimek/vm2/releases/tag/v3.10.2
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

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