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Vulnerability details: VCID-bcct-j6mk-z7hu
Vulnerability ID VCID-bcct-j6mk-z7hu
Aliases CVE-2026-44004
GHSA-6785-pvv7-mvg7
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-770 Allocation of Resources Without Limits or Throttling
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2026-44004
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2026-44004
epss 0.00052 https://api.first.org/data/v1/epss?cve=CVE-2026-44004
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-6785-pvv7-mvg7
cvssv3.1 7.5 https://github.com/patriksimek/vm2
generic_textual HIGH https://github.com/patriksimek/vm2
cvssv3.1 7.5 https://github.com/patriksimek/vm2/releases/tag/v3.11.0
generic_textual HIGH https://github.com/patriksimek/vm2/releases/tag/v3.11.0
cvssv3.1 7.5 https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7
cvssv3.1_qr HIGH https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7
generic_textual HIGH https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7
ssvc Track https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2026-44004
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2026-44004
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-44004
https://github.com/patriksimek/vm2
https://nvd.nist.gov/vuln/detail/CVE-2026-44004
GHSA-6785-pvv7-mvg7 https://github.com/advisories/GHSA-6785-pvv7-mvg7
GHSA-6785-pvv7-mvg7 https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/patriksimek/vm2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/patriksimek/vm2/releases/tag/v3.11.0
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-13T18:07:58Z/ Found at https://github.com/patriksimek/vm2/security/advisories/GHSA-6785-pvv7-mvg7
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2026-44004
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.16741
EPSS Score 0.00052
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:42:36.885955+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/44xxx/CVE-2026-44004.json 38.6.0