CVE-2026-43997CWE-653CWE-94code-injection

CVE-2026-43997

Critical · published May 13, 2026

CVSS v3.1
10.0
EPSS
1%
Percentile
55.0
In the wild
Unconfirmed
What it is

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). This vulnerability is fixed in 3.11.0.

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00767 · 55.0th percentile
Weaknesses
CWE-653 · Improper Isolation or Compartmentalization; CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-05-13T22:16Z
Affected products (1)
ProductVersionsFixed in
vm2_project/vm2< 3.11.03.11.0
References (6)
https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6 · [email protected]https://access.redhat.com/errata/RHSA-2026:50850 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/security/cve/CVE-2026-43997 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2477203 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6 · 134c704f-9b21-4f2e-91b3-4a467353bcc0https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43997.json · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
EPSS history
Timeline
  • 13 MAY 17:17Z
    vm2: Sandbox Escape
    cvelistv5