CVE-2026-92959 vm2 - Asynchronous Execution Bypass

vm2 before 3.11.8 contains an asynchronous execution bypass caused by incomplete enforcement of the allowAsync: false option in VM and NodeVM, letting sandboxed scripts execute code after VM.run() returns, exploit requires sandboxed code execution.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.45% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Asynchronous Execution Bypass
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Published
17 September 2026
Updated
15 October 2026
Weakness
CWE-693

Vendor fix

Update to version 3.11.8 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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