Yargs-parser, a cornerstone dependency for the popular yargs command-line argument parser, saw a minor update from version 6.0.0 to 6.0.1 on May 1st, 2017. Both versions share the same core dependencies, relying on camelcase (version ^4.1.0) for converting strings with casing styles and a suite of development tools, including nyc for code coverage, chai for assertions, mocha for testing, standard for code stylelinting, coveralls for coverage reporting, and standard-version for managing versioning. The key difference lies in the timing; 6.0.1 was released roughly five hours after 6.0.0. This suggests that version 6.0.1 likely addresses a bug fix or a minor tweak introduced in the initial 6.0.0 release.
For developers incorporating yargs-parser into their projects, it’s a signal that the maintainers are responsive and actively addressing issues. While the core functionality remains consistent between the two versions, upgrading to 6.0.1 is recommended to adopt any immediate fixes and maintain stability. The library's ISC license and repository on GitHub indicate its open-source nature, encouraging contribution and scrutiny from the wider development community. Being authored by Ben Coe, a recognized figure in the npm ecosystem, further adds to the package's credibility. The availability of a tarball distribution via the npm registry simplifies integration into various build and deployment pipelines.
All the vulnerabilities related to the version 6.0.1 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.
