Critical severity · published Sep 17, 2026
CVE-2026-92953
vm2 3.11.0 through 3.11.7 Prototype Pollution via TypedArray
10.0
CVSS
0.5%
EPSS
No
On KEV
Description
vm2 versions from 3.11.0 before 3.11.8 fail to protect host TypedArray and ArrayBuffer prototypes from sandbox mutation. Attackers can use prototype-walking primitives to reach and modify host Uint8Array.prototype, %TypedArray%.prototype, and ArrayBuffer.prototype, causing host-created typed arrays to observe attacker-controlled properties after VM.run() returns.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VM
vm2 · patriksimek
3.11.0 before 3.11.8 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-92953
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-92953
github.com
https://github.com/patriksimek/vm2/security/advisories/GHSA-3vgf-8m4q-q4qr
www.vulncheck.com
https://www.vulncheck.com/advisories/vm2-3.11.0-through-3.11.7-prototype-pollution-via-typedarray
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