CVE-2026-47686
vm2: Missing Error.cause Sanitization Enables VM2 Sandbox Escape to RCE
- State
- Published
- Severity
- 9.9 Critical
- Published
- Aug 17, 2026
- Updated
- Aug 19, 2026
- Reserved
- May 19, 2026
Description
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, handleException() in lib/setup-sandbox.js sanitizes SuppressedError.error, SuppressedError.suppressed, and AggregateError.errors but does not sanitize Error.cause, allowing sandbox code to obtain a powerful host object such as process from an embedder-exposed host function that throws an error with that object as its cause and then execute arbitrary host commands. This issue is fixed in version 3.11.6.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.9 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | GitHub_M |
Weaknesses
- CWE-693 Protection Mechanism Failure
Affected Products
| Product | Versions |
|---|---|
vm2patriksimek |
|
References
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