CVE-2026-44000: patriksimek vm2 · Protection Mechanism Failure
Affects patriksimek vm2Source CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 3.11.0 when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.11.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 13 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 30 Oct 2026.
What to do
Upgrade patriksimek vm2 to 3.11.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| patriksimekvm2 | Affected
| Fixed in
|
npmvm2pkg:npm/vm2Other threats | Affected
| Fixed in
|
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 3.11.0. Users should upgrade to version 3.11.0 or later to remediate this issue. Patch status is not explicitly stated beyond the fix in 3.11.0, so verifying the upgrade and consulting the official vm2 repository or vendor advisory for confirmation is recommended.
Description
CVE-2026-44000 is a vulnerability in the vm2 Node.js sandbox prior to version 3.11.0 that allows host object identity to leak into the sandbox via host Promise resolution. This occurs because the Promise fulfillment wrapper uses ensureThis() instead of a stronger cross-realm conversion, enabling sandbox code to directly interact with host objects, including identity checks and state mutation. The vulnerability is fixed in vm2 version 3.11.0. The CVSS 3.1 base score is 6.