CVE-2026-26956: CWE-693: Protection Mechanism Failure in patriksimek vm2
vm2 is an open source vm/sandbox for Node.js. In version 3.10.4, vm2 is vulnerable to full sandbox escape with arbitrary code execution. Attacker code inside VM.run() obtains host process object and runs host commands with zero host cooperation. This issue has been patched in version 3.10.5.
AI Analysis
Technical Summary
The vm2 library version 3.10.4 contains a critical sandbox escape vulnerability (CVE-2026-26956) where malicious code executed within VM.run() can gain access to the host process object and execute arbitrary host commands. This bypasses the intended isolation of the sandbox environment, leading to full arbitrary code execution on the host. The vulnerability is due to a failure in the protection mechanisms designed to isolate the sandboxed code. The vulnerability has been patched in version 3.10.5 of vm2.
Potential Impact
Successful exploitation allows an attacker to fully escape the vm2 sandbox and execute arbitrary code on the host system with no required privileges or user interaction. This can lead to complete compromise of the host environment, including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Upgrade vm2 to version 3.10.5 or later where this vulnerability is patched. Since this is a self-hosted library and not a cloud service, users must apply the update themselves. Patch status is not explicitly stated in a vendor advisory but the description confirms the fix is in version 3.10.5.
CVE-2026-26956: CWE-693: Protection Mechanism Failure in patriksimek vm2
Description
vm2 is an open source vm/sandbox for Node.js. In version 3.10.4, vm2 is vulnerable to full sandbox escape with arbitrary code execution. Attacker code inside VM.run() obtains host process object and runs host commands with zero host cooperation. This issue has been patched in version 3.10.5.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vm2 library version 3.10.4 contains a critical sandbox escape vulnerability (CVE-2026-26956) where malicious code executed within VM.run() can gain access to the host process object and execute arbitrary host commands. This bypasses the intended isolation of the sandbox environment, leading to full arbitrary code execution on the host. The vulnerability is due to a failure in the protection mechanisms designed to isolate the sandboxed code. The vulnerability has been patched in version 3.10.5 of vm2.
Potential Impact
Successful exploitation allows an attacker to fully escape the vm2 sandbox and execute arbitrary code on the host system with no required privileges or user interaction. This can lead to complete compromise of the host environment, including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Upgrade vm2 to version 3.10.5 or later where this vulnerability is patched. Since this is a self-hosted library and not a cloud service, users must apply the update themselves. Patch status is not explicitly stated in a vendor advisory but the description confirms the fix is in version 3.10.5.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-02-16T22:20:28.611Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f8d216cbff5d861039703d
Added to database: 5/4/2026, 5:06:30 PM
Last enriched: 5/4/2026, 5:21:49 PM
Last updated: 5/5/2026, 5:55:00 AM
Views: 3
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