CVE-2026-92955
vm2 before 3.11.8 Sandbox Escape via NodeVM
- State
- Published
- Severity
- 10.0 Critical
- Published
- Sep 17, 2026
- Updated
- Sep 17, 2026
- Reserved
- Sep 17, 2026
Description
vm2 before 3.11.8 contains a sandbox escape vulnerability in NodeVM that allows attackers to access the host __proto__ getter/setter through console._stdout and console._stderr. Attackers can overwrite EventEmitter.prototype.emit and trigger process events to execute code with process context, bypassing code generation restrictions.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 10.0 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | VulnCheck |
| 3.1 | 10.0 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-913 Improper Control of Dynamically-Managed Code Resources
Affected Products
| Product | Versions |
|---|---|
vm2patriksimek |
|
References
- GitHub Security Advisory (GHSA-88hf-g992-jg85)vendor-advisory
- VulnCheck Advisory: vm2 before 3.11.8 Sandbox Escape via NodeVMthird-party-advisory
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