CVE-2026-44002 MEDIUM

CVE-2026-44002: vm2: Host File Path Disclosure via Stack Trace Information Leak

Vendor Patriksimek
Product vm2
Weakness CWE-209 · Error message info leak
Published May 13, 2026
Last update May 14, 2026

CVSS base score

5.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 13, 2026 CVE published
May 14, 2026 Record updated