CVE-2026-92953CWE-913

CVE-2026-92953

Critical · published September 17, 2026

CVSS v3.1
10.0
EPSS
1%
Percentile
42.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
CVSS v4.0
9.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H
EPSS
0.00501 · 42.0th percentile
Weakness
CWE-913 · Improper Control of Dynamically-Managed Code Resources
Published
2026-09-17T18:18Z
References (3)
https://github.com/patriksimek/vm2/security/advisories/GHSA-3vgf-8m4q-q4qr · [email protected]https://www.vulncheck.com/advisories/vm2-3.11.0-through-3.11.7-prototype-pollution-via-typedarray · [email protected]https://github.com/patriksimek/vm2/security/advisories/GHSA-3vgf-8m4q-q4qr · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 19 SEP 03:55Z
    EPSS moved — → 0%
    epss
  • 17 SEP 13:46Z
    vm2 3.11.0 through 3.11.7 Prototype Pollution via TypedArray
    cvelistv5