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GHSA-vh95-rmgr-6w4m

Prototype Pollution in minimist

Source: GitHub Advisory Database (reviewed) Moderate CVE-2020-7598

Packages

EcosystemPackageAffectedFixed in
npm minimist < 0.2.1 0.2.1
npm minimist >= 1.0.0, < 1.2.3 1.2.3

Details

As written in the advisory (Markdown source, shown as plain text).

Affected versions of `minimist` are vulnerable to prototype pollution. Arguments are not properly sanitized, allowing an attacker to modify the prototype of `Object`, causing the addition or modification of an existing property that will exist on all objects. Parsing the argument `--__proto__.y=Polluted` adds a `y` property with value `Polluted` to all objects. The argument `--__proto__=Polluted` raises and uncaught error and crashes the application. This is exploitable if attackers have control over the arguments being passed to `minimist`. ## Recommendation Upgrade to versions 0.2.1, 1.2.3 or later.

References

External links from the advisory. They lead to third-party sites.