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
.
Upgrade to versions 0.2.1, 1.2.3 or later.
{ "nvd_published_at": "2020-03-11T23:15:00Z", "cwe_ids": [ "CWE-1321" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2020-04-03T21:42:08Z" }