CVE-2026-26956

Published: May 4, 2026

Modified: May 5, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

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.

Vendor	Product	Versions
patriksimek	vm2	affected `= 3.10.4`

Weaknesses (CWE)

CWE-693

CVSS v3.1 Details

CVSS v3.1 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

References

https://github.com/patriksimek/vm2/security/advisories/GHSA-ffh4-j6h5-pg66

x_refsource_CONFIRM

https://github.com/patriksimek/vm2/releases/tag/v3.10.5

x_refsource_MISC

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CVE-2026-26956

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References