CVE catalog
CVE-2026-44000
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox boundary violation in vm2 allows host object identity to cross into the sandbox through host Promise resolution. When a host-si
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.20% · Oct 27, 2026
A flaw was found in vm2 (before 3.11.0). Host-side Promises that resolve to host objects deliver values to sandbox .then() callbacks without cross-realm conversion (ensureThis() instead of from()/proxy wrapping), allowing sandbox code to interact with host objects directly. Fixed in 3.11.0. vm2: vm2: Sandbox escape allows direct interaction with host objects vm2 is vulnerable to sandbox boundary violation when host Promises resolve host objects into sandbox callbacks, enabling direct host object interaction and limited confidentiality/integrity impact. A remote unauthenticated attacker who can run sandboxed code and trigger host Promise resolution may read or mutate host object state. Fixed in vm2 3.11.0. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | vm2 | Not reported | 3.11.0 | fixed |
| Cpe | vm2 | Not reported | 3.11.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | vm2 | cpe | Not reported | 3.11.0 | Not reported | Not reported | Not reported |
| Cpe | vm2 | cpe | Not reported | 3.11.0 | Not reported | NVD-CVE-2026-44000 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/patriksimek/vm2/security/advisories/GHSA-mpf8-4hx2-7cjg]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-44000]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44000.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1349.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]