CVE-2026-44002 Security Details

CVE ID

CVE-2026-44002

CWE

CWE-209

CVE Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's CallSite wrapper class (intended as a safe wrapper for V8's native CallSite) blocks getThis() and getFunction() to prevent host object leakage, but allows getFileName() to return unsanitized host absolute paths. Any sandboxed code can extract the full directory structure, library paths, and framework versions of the host server. This vulnerability is fixed in 3.11.0.

Published

May 7, 2026

CVSS Score & Severity

5.3Medium

CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS Score

0.039%

Malware

malware

KEV Status

Not in KEV Catalog: No known exploits

Vulnerable Methods

applyCallSiteGetters()

JS

Affected Ecosystems

affected

Source

National Vulnerability Database

References

GitHub · Advisory · GHSA-v27g-jcqj-v8rwTHIRD_PARTY