CVE-2026-44004

HIGH EPSS 23.8%
Published May 13, 20261mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
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Published May 13, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

Description

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 Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
23.8% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-770

Affected Products 1

VendorProductVersionRange
vm2_projectvm2* <3.11.0

References 1

  • github.com https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7
    ExploitVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.