CVE-2026-43998

Published: Mag 13, 2026 Last Modified: Mag 13, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,5
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: low
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

vm2 is an open source vm/sandbox for Node.js. In 3.10.5, NodeVM's require.root path restriction can be bypassed using filesystem symlinks, allowing sandboxed code to load modules from outside the allowed root directory in host context. Because path validation uses path.resolve() (which does not dereference symlinks) but module loading uses Node's native require() (which does), an attacker can load arbitrary host-realm modules and achieve remote code execution. This vulnerability is fixed in 3.11.0.

59

Improper Link Resolution Before File Access ('Link Following')

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control Other
Potential Impacts:
Read Files Or Directories Modify Files Or Directories Bypass Protection Mechanism Execute Unauthorized Code Or Commands
Applicable Platforms
Operating Systems: Windows, Unix
Likelihood of Exploit: Medium
View CWE Details
https://github.com/patriksimek/vm2/security/advisories/GHSA…
https://github.com/patriksimek/vm2/security/advisories/GHSA-cp6g-6699-wx9c