What is CVE-2026-44004?

CVE-2026-44004 is a high-severity vulnerability in Patriksimek Vm2, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-05-13.

How severe is CVE-2026-44004?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Patriksimek Vm2

CVE-2026-44004

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, sandboxed code can call Buffer.alloc() with an arbitrary size to allocate memory directly on the host heap. Because Buffer.alloc is a synchronous C++ native call, vm2's timeout…

EPSS: 0.001 (16.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Patriksimek Vm2 — versions < 3.11.0
Vm2_project Vm2

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

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

Frequently asked questions

What is CVE-2026-44004?: CVE-2026-44004 is a high-severity vulnerability in Patriksimek Vm2, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-05-13.
How severe is CVE-2026-44004?: High severity. CVSS v3 base score is 7.5 out of 10.