Affected versions of yargs-parser
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 --foo.__proto__.bar baz'
adds a bar
property with value baz
to all objects. This is only exploitable if attackers have control over the arguments being passed to yargs-parser
.
Upgrade to versions 13.1.2, 15.0.1, 18.1.1 or later.
CPE | Name | Operator | Version |
---|---|---|---|
yargs-parser | lt | 18.1.1 | |
yargs-parser | ge | 14.0.0 | |
yargs-parser | ge | 16.0.0 | |
yargs-parser | ge | 6.0.0 | |
yargs-parser | lt | 5.0.1 | |
yargs-parser | lt | 15.0.1 | |
yargs-parser | lt | 13.1.2 |