CVE-2026-44002

vm2: Host File Path Disclosure via Stack Trace Information Leak

MEDIUM
5.8
CVSS Score
Published: May 13, 2026 at 05:29 PM UTC
Updated: October 26, 2026 at 05:10 PM UTC
2 products affected across 2 vendorsVM2VM2

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Severity
MEDIUM5.8
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.11.0
v < 3.11.0
Affected range stops below 3.11.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/patriksimek/vm2/security/advisories/GHSA-v27g-jcqj-v8rw

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.8MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-209

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