CVE-2026-92949
Published:September 17, 2026
Updated:September 22, 2026
vm2 versions from 3.9.6 before 3.11.7 fail to properly restrict access to accessor properties on frozen objects, allowing sandboxed scripts to bypass vm.freeze() and vm.readonly() protections. Attackers can use Object.getOwnPropertyDescriptor() or lookupSetter() to extract and invoke host object setters directly, mutating properties the embedder explicitly marked read-only.
Affected Packages
https://github.com/patriksimek/vm2.git (GITHUB):
Affected version(s) =3.11.6 <v3.11.7Fix Suggestion:
Update to version v3.11.7vm2 (NPM):
Affected version(s) >=3.9.6 <3.11.7Fix Suggestion:
Update to version 3.11.7Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
4
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Modification of Assumed-Immutable Data (MAID)
EPSS
Base Score:
0.25