Lodash.merge offers a modularized approach to the popular _.merge function from the Lodash library, a utility belt for JavaScript developers. These specific versions, 4.0.0 and 4.0.1, provide deep merging capabilities, allowing developers to recursively combine properties from one or more source objects into a destination object. The key benefit is simplified object manipulation, crucial for managing configuration settings, data aggregation, and creating complex data structures, especially in web applications and Node.js environments. Version 4.0.1 builds on the functionality of 4.0.0, representing a patch release. Examining the dependencies reveals the core difference: lodash._stack is updated from version 3.0.0 to 4.0.0. This seemingly small change often indicates internal optimizations, bug fixes related to stack management during deep recursion, or performance enhancements. For developers, upgrading to 4.0.1 is highly recommended as it likely addresses potential edge cases or improves overall stability without introducing breaking changes, ensuring a smoother merging process. The release dates also highlight the rapid iteration, with only a few hours separating the two versions suggesting it could be a fix for a bug. Both versions share the same MIT license but developers should always check the package files. As a result of the upgrade, developers should see a more efficient and reliable merge experience, especially when working with deeply nested objects.
All the vulnerabilities related to the version 4.0.1 of the package
Prototype Pollution in lodash.merge
Versions of lodash.merge before 4.6.1 are vulnerable to Prototype Pollution. The function 'merge' may allow a malicious user to modify the prototype of Object via __proto__ causing the addition or modification of an existing property that will exist on all objects.
Update to version 4.6.1 or later.
Prototype Pollution in lodash.merge
Versions of lodash.merge before 4.6.2 are vulnerable to prototype pollution. The function merge may allow a malicious user to modify the prototype of Object via {constructor: {prototype: {...}}} causing the addition or modification of an existing property that will exist on all objects.
Update to version 4.6.2 or later.
