CVE-2026-44004vm2 is an open source vm/sandbox for Node.js.
Updated under an hour ago ()
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It affects vm2_project vm2. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770, CWE-1285
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Aug 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
vm2_project vm2 vm2_project:vm2 | before 3.11.0 | NVD |
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7exploit, vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:50850
- https://access.redhat.com/security/cve/CVE-2026-44004
- https://bugzilla.redhat.com/show_bug.cgi?id=2477195
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44004.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.