Improper Access Control
CVE-2026-44007
Summary
When a `NodeVM` is created with `nesting: true`, sandbox code can unconditionally `require('vm2')` regardless of the outer VM's `require` configuration -- including `require: false`. With access to `vm2`, the sandbox constructs a new inner `NodeVM` with its own unrestricted `require` settings and executes arbitrary OS commands on the host. Any application that runs untrusted code inside a `NodeVM` with `nesting: true` is fully compromised. All versions prior to 3.11.1 are affected.
- LOW
- NETWORK
- HIGH
- CHANGED
- NONE
- HIGH
- HIGH
- HIGH
CWE-284 - Improper Access Control
Listed 5th in the 'OWASP Top Ten', improper (or broken) access control attacks are a fundamental type of vulnerability. This includes a broad range of design flaws that enable users to act outside of their intended permissions. They can use these privileges to gain access to restricted files and functionality such as accessing restricted information, falsifying records, destroying data, or executing commands.
References
Advisory Timeline
- Published