Vulnerability Details CVE-2026-44004
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 16.6%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-44004
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cpe:2.3:a:vm2_project:vm2:-
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cpe:2.3:a:vm2_project:vm2:0.1.0
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cpe:2.3:a:vm2_project:vm2:0.1.1
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cpe:2.3:a:vm2_project:vm2:0.2.0
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cpe:2.3:a:vm2_project:vm2:0.2.1
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cpe:2.3:a:vm2_project:vm2:0.2.2
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cpe:2.3:a:vm2_project:vm2:0.2.3
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cpe:2.3:a:vm2_project:vm2:0.2.4
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cpe:2.3:a:vm2_project:vm2:1.0.0
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cpe:2.3:a:vm2_project:vm2:1.0.1
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cpe:2.3:a:vm2_project:vm2:2.0.0
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cpe:2.3:a:vm2_project:vm2:2.0.2
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cpe:2.3:a:vm2_project:vm2:3.0.0
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cpe:2.3:a:vm2_project:vm2:3.0.1
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cpe:2.3:a:vm2_project:vm2:3.1.0
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cpe:2.3:a:vm2_project:vm2:3.10.0
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cpe:2.3:a:vm2_project:vm2:3.10.1
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cpe:2.3:a:vm2_project:vm2:3.10.2
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cpe:2.3:a:vm2_project:vm2:3.10.3
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cpe:2.3:a:vm2_project:vm2:3.10.4
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cpe:2.3:a:vm2_project:vm2:3.10.5
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cpe:2.3:a:vm2_project:vm2:3.2.0
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cpe:2.3:a:vm2_project:vm2:3.3.0
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cpe:2.3:a:vm2_project:vm2:3.3.1
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cpe:2.3:a:vm2_project:vm2:3.4.0
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cpe:2.3:a:vm2_project:vm2:3.4.1
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cpe:2.3:a:vm2_project:vm2:3.4.3
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cpe:2.3:a:vm2_project:vm2:3.4.4
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cpe:2.3:a:vm2_project:vm2:3.4.5
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cpe:2.3:a:vm2_project:vm2:3.4.6
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cpe:2.3:a:vm2_project:vm2:3.5.0
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cpe:2.3:a:vm2_project:vm2:3.5.1
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cpe:2.3:a:vm2_project:vm2:3.5.2
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cpe:2.3:a:vm2_project:vm2:3.6.0
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cpe:2.3:a:vm2_project:vm2:3.6.1
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cpe:2.3:a:vm2_project:vm2:3.6.10
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cpe:2.3:a:vm2_project:vm2:3.6.11
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cpe:2.3:a:vm2_project:vm2:3.6.2
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cpe:2.3:a:vm2_project:vm2:3.6.3
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cpe:2.3:a:vm2_project:vm2:3.6.4
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cpe:2.3:a:vm2_project:vm2:3.6.5
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cpe:2.3:a:vm2_project:vm2:3.6.6
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cpe:2.3:a:vm2_project:vm2:3.6.7
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cpe:2.3:a:vm2_project:vm2:3.6.8
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cpe:2.3:a:vm2_project:vm2:3.6.9
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cpe:2.3:a:vm2_project:vm2:3.7.0
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cpe:2.3:a:vm2_project:vm2:3.8.0
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cpe:2.3:a:vm2_project:vm2:3.8.1
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cpe:2.3:a:vm2_project:vm2:3.8.2
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cpe:2.3:a:vm2_project:vm2:3.8.3
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cpe:2.3:a:vm2_project:vm2:3.8.4
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cpe:2.3:a:vm2_project:vm2:3.9.0
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cpe:2.3:a:vm2_project:vm2:3.9.1
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cpe:2.3:a:vm2_project:vm2:3.9.10
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cpe:2.3:a:vm2_project:vm2:3.9.11
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cpe:2.3:a:vm2_project:vm2:3.9.12
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cpe:2.3:a:vm2_project:vm2:3.9.13
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cpe:2.3:a:vm2_project:vm2:3.9.14
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cpe:2.3:a:vm2_project:vm2:3.9.15
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cpe:2.3:a:vm2_project:vm2:3.9.16
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cpe:2.3:a:vm2_project:vm2:3.9.17
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cpe:2.3:a:vm2_project:vm2:3.9.18
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cpe:2.3:a:vm2_project:vm2:3.9.19
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cpe:2.3:a:vm2_project:vm2:3.9.2
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cpe:2.3:a:vm2_project:vm2:3.9.3
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cpe:2.3:a:vm2_project:vm2:3.9.4
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cpe:2.3:a:vm2_project:vm2:3.9.5
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cpe:2.3:a:vm2_project:vm2:3.9.6
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cpe:2.3:a:vm2_project:vm2:3.9.7
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cpe:2.3:a:vm2_project:vm2:3.9.8
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cpe:2.3:a:vm2_project:vm2:3.9.9