Vulnerability · Published Jun 12, 2026 · Assigned by GitHub_M
CVE-2026-47208vm2: Sandbox Breakout Using Promise Species
Critical 10.0
In plain English
A critical-severity security flaw in vm2 from patriksimek. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)1.0%top 35.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, VM2 suffers from a sandbox breakout vulnerability. This allows attackers to write code which can escape from the VM2 sandbox and execute arbitrary commands on the host system. This issue has been patched in version 3.11.4.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | vm2 | 3.11.4 | GHSA-76w7-j9cq-rx2j |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| patriksimek | vm2 | < 3.11.4 |
Weakness: CWE-913 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-76w7-j9cq-rx2j x_refsource_CONFIRM
- https://github.com/patriksimek/vm2/commit/a462655009669c3124ee39498121651597529ea8 x_refsource_MISC
- https://github.com/patriksimek/vm2/releases/tag/v3.11.4 x_refsource_MISC