CVE-2026-22709

CRITICAL
2026-01-26 [email protected] GHSA-99p7-6v5w-7xg8
9.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 22:00 vuln.today
PoC Detected
Feb 17, 2026 - 20:59 vuln.today
Public exploit code
Patch Released
Feb 17, 2026 - 20:59 nvd
Patch available
CVE Published
Jan 26, 2026 - 22:15 nvd
CRITICAL 9.8

Tags

Node.js Vm2

Description

vm2 is an open source vm/sandbox for Node.js. In vm2 prior to version 3.10.2, `Promise.prototype.then` `Promise.prototype.catch` callback sanitization can be bypassed. This allows attackers to escape the sandbox and run arbitrary code. In lib/setup-sandbox.js, the callback function of `localPromise.prototype.then` is sanitized, but `globalPromise.prototype.then` is not sanitized. The return value of async functions is `globalPromise` object. Version 3.10.2 fixes the issue.

Analysis

Sandbox escape in vm2 Node.js sandbox before 3.10.2 via Promise.prototype.then/catch callback sanitization bypass. PoC and patch available.

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Remediation

Within 24 hours: Identify all systems running vm2 and assess exposure to untrusted code inputs; communicate status to leadership. Within 7 days: Apply vendor patch to upgrade vm2 to version 3.10.2 or later across all affected environments; validate patch deployment. …

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Priority Score

69
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +49
POC: +20

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CVE-2026-22709 vulnerability details – vuln.today
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