CVE-2026-26956 — CRITICAL (9.8)

Q: How severe is CVE-2026-26956?

CVE-2026-26956 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-26956?

Check the references section above for vendor advisories and patch information. Affected products include: Vm2 Project Vm2.

Vulnerability 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.

CVSS Score

9.8

CRITICAL

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

Affected Products

Vendor	Product	Versions
Vm2 Project	Vm2	< 3.10.5

Related Weaknesses (CWE)

CWE-693

References

https://github.com/patriksimek/vm2/releases/tag/v3.10.5Release Notes
https://github.com/patriksimek/vm2/security/advisories/GHSA-ffh4-j6h5-pg66ExploitVendor Advisory
https://github.com/patriksimek/vm2/security/advisories/GHSA-ffh4-j6h5-pg66ExploitVendor Advisory

FAQ

What is CVE-2026-26956?

CVE-2026-26956 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 r...

How severe is CVE-2026-26956?

CVE-2026-26956 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-26956?

Check the references section above for vendor advisories and patch information. Affected products include: Vm2 Project Vm2.