CVE-2026-44004
High · 7.5CVSS
7.5
EPSS
0.7%
Published
May 13, 2026
CISA due date
—
The record
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, sandboxed code can call Buffer.alloc() with an arbitrary size to allocate memory directly on the host heap. Because Buffer.alloc is a synchronous C++ native call, vm2's timeout option cannot interrupt it. A single request can exhaust host memory and crash the process with a FATAL ERROR: Reached heap limit. This vulnerability is fixed in 3.11.0.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | vm2 | 0 | 3.11.0 |
Related vulnerabilities
- GHSA-6785-pvv7-mvg7 vm2 Sandbox Access to Host Buffer.alloc Allows timeout Bypass Resulting in Memory… Same vulnerability
- CVE-2026-47210 vm2 is an open source vm/sandbox for Node.js. Also affects vm2
- CVE-2026-47209 vm2 is an open source vm/sandbox for Node.js. Also affects vm2
- CVE-2026-47139 vm2 is an open source vm/sandbox for Node.js. Also affects vm2
- CVE-2026-47208 vm2 is an open source vm/sandbox for Node.js. Also affects vm2
- CVE-2026-47135 vm2 is an open source vm/sandbox for Node.js. Also affects vm2
- CVE-2026-47137 vm2 is an open source vm/sandbox for Node.js. Also affects vm2
- CVE-2026-47141 vm2 is an open source vm/sandbox for Node.js. Also affects vm2