What is CVE-2026-44008?

CVE-2026-44008 is a critical-severity vulnerability in Patriksimek Vm2, classified under Exposure of Resource to Wrong Sphere. CVSS score: 9.8/10. Published 2026-05-13.

How severe is CVE-2026-44008?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Patriksimek Vm2

CVE-2026-44008

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.2, the new method neutralizeArraySpeciesBatch works with objects from the other side but can call into this side via getter on the array prototype exposing objects of the wrong si…

EPSS: 0.001 (24.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Patriksimek Vm2 — versions < 3.11.2
Vm2_project Vm2

Weakness classification (CWE)

CWE-668 — Exposure of Resource to Wrong Sphere

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-44008?: CVE-2026-44008 is a critical-severity vulnerability in Patriksimek Vm2, classified under Exposure of Resource to Wrong Sphere. CVSS score: 9.8/10. Published 2026-05-13.
How severe is CVE-2026-44008?: Critical severity. CVSS v3 base score is 9.8 out of 10.