Yargs, a lightweight option parsing library for Node.js applications, saw a minor version update from 4.3.1 to 4.3.2 in March 2016. Both versions maintain identical core functionality, offering developers a straightforward way to manage command-line arguments and options. The description field highlights the "argv hash" which emphasizes the direct access approach. Both versions share the same set of core dependencies, including y18n for internationalization, cliui for building command-line user interfaces, and yargs-parser for the underlying argument parsing logic. This indicates that the fundamental way Yargs handles input and output, localization and command-line interface construction remained stable between these releases.
The development dependencies also remain consistent across both versions, suggesting that the focus wasn't on major architectural changes or testing framework updates. This consistent set of dependencies means that contributors can rely on a predictable test suite when developing for the Yargs library. The key difference lies in the releaseDate, with version 4.3.2 being released approximately a week after 4.3.1. This suggests the update might have addressed minor bug fixes, documentation improvements, or subtle internal adjustments rather than introducing significant new features. For developers already using Yargs 4.3.1, upgrading to 4.3.2 should be a seamless experience, assuring continued stability and reliability in their command-line argument parsing needs.
All the vulnerabilities related to the version 4.3.2 of the package
yargs-parser Vulnerable to Prototype Pollution
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.