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    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.

    Published:May 13, 2026
    Last Modified:May 14, 2026
    EPS:May 13, 2026
    EPSS Score:0.0004
    CVSS Score:7.5

    Affected Products

    Vendor
    Patriksimek
    Product
    Vm2
    Vendor
    Vm2 Project
    Product
    Vm2

    Exploits

    https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7

    Related CVEs

    CVE-2026-47683 (CVSS 8.7) — vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, the bufferAllocLimit enforcement in lib/setup-s…
    CVE-2026-47686 (CVSS 9.9) — vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, handleException() in lib/setup-sandbox.js sanit…
    CVE-2026-47698 (CVSS 9.8) — vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, lib/bridge.js and lib/setup-sandbox.js fail to …
    CVE-2026-47141 (CVSS 6.9) — vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM exposes some process-wide observ…
    CVE-2026-47210 (CVSS 9.8) — vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, a sandbox escape vulnerability in vm2 a…
    CVE-2026-47208 (CVSS 10) — vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, VM2 suffers from a sandbox breakout vul…
    CVE-2026-47140 (CVSS 10) — vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM blocks several dangerous Node.js…
    CVE-2026-47139 (CVSS 8.6) — vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM supports excluding public networ…
    CVE-2026-47137 (CVSS 10) — vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the fix for GHSA-8hg8-63c5-gwmx (CVE-20…
    CVE-2026-47135 (CVSS 8.7) — vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, Symbol.for override in setup-sandbox.js…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High