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VulnerabilityPublished Updated

CVE-2026-44007: patriksimek vm2 · Improper Access Control

Affects patriksimek vm2Source CVE Database V5

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Not known to be exploited · CVSS 9.1 Critical : upgrade to 3.11.1 as a priority.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.9% chance of exploitation in 30 days – higher than 61% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.11.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade patriksimek vm2 to 3.11.1.

Affected software

ProductAffectedFixed in
patriksimekvm2Affected
  • <3.11.1
Fixed in
  • 3.11.1
npmvm2pkg:npm/vm2Other threatsAffected
  • <3.11.1
Fixed in
  • 3.11.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

This vulnerability is fixed in vm2 version 3.11.1. Users should upgrade to version 3.11.1 or later to remediate the issue. No alternative mitigations are specified by the vendor advisory. Applications running untrusted code inside a NodeVM with nesting enabled should apply the update promptly to prevent exploitation.

Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.1, when a NodeVM is created with nesting: true, sandbox code can unconditionally require('vm2') regardless of the outer VM's require configuration — including require: false. With access to vm2, the sandbox constructs a new inner NodeVM with its own unrestricted require settings and executes arbitrary OS commands on the host. Any application that runs untrusted code inside a NodeVM with nesting: true is fully compromised. This vulnerability is fixed in 3.11.1.

References

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