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Vulnerability details: VCID-6fr8-3aqn-wyce
Vulnerability ID VCID-6fr8-3aqn-wyce
Aliases CVE-2026-43997
GHSA-47x8-96vw-5wg6
Summary vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). This vulnerability is fixed in 3.11.0.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-94 Improper Control of Generation of Code ('Code Injection')
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 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-43997
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-43997
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-43997
epss 0.00024 https://api.first.org/data/v1/epss?cve=CVE-2026-43997
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-47x8-96vw-5wg6
cvssv3.1 10.0 https://github.com/patriksimek/vm2
generic_textual CRITICAL https://github.com/patriksimek/vm2
cvssv3.1 10.0 https://github.com/patriksimek/vm2/releases/tag/v3.11.0
generic_textual CRITICAL https://github.com/patriksimek/vm2/releases/tag/v3.11.0
cvssv3.1 10 https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
cvssv3.1 10.0 https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
cvssv3.1_qr CRITICAL https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
generic_textual CRITICAL https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
ssvc Track* https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
cvssv3.1 10.0 https://nvd.nist.gov/vuln/detail/CVE-2026-43997
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2026-43997
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-43997
https://github.com/patriksimek/vm2
https://nvd.nist.gov/vuln/detail/CVE-2026-43997
GHSA-47x8-96vw-5wg6 https://github.com/advisories/GHSA-47x8-96vw-5wg6
GHSA-47x8-96vw-5wg6 https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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:C/C:H/I:H/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:C/C:H/I:H/A:H Found at https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
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:C/C:H/I:H/A:H Found at https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
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:T/P:M/B:A/M:M/D:R/2026-05-13T18:39:53Z/ Found at https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2026-43997
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 0.06381
EPSS Score 0.00022
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:41:17.988770+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/43xxx/CVE-2026-43997.json 38.6.0