What is CVE-2026-44009?

CVE-2026-44009 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-2026-44009?

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

Vulnerability in Patriksimek Vm2

CVE-2026-44009

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.2, This vulnerability is fixed in 3.11.2.

Published 2026-05-13 · last modified 2026-09-07.

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.

EPSS exploit prediction

EPSS: 0.007 (52.6th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.007 · change: -0.001

Affected products

Patriksimek Vm2 — versions < 3.11.2
Vm2 Project

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-44009?: CVE-2026-44009 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-2026-44009?: Critical severity. CVSS v3 base score is 9.8 out of 10.