Lodash.merge is a utility library focused on deeply merging objects in JavaScript environments. Version 3.3.0, released on May 19, 2015, builds upon the previous stable version 3.2.1 released on May 1, 2015 to provide an improved object merging solution. For developers, understanding the nuances between these versions is key to ensuring stable and predictable application behavior.
Examining the dependencies, the primary difference lies in the shift from lodash.isnative in version 3.2.1 to lodash._getnative in version 3.3.0. This change suggests an internal refactoring likely aimed at greater control over native function detection or improved performance across different JavaScript environments. While both versions share core dependencies like lodash.isarray, lodash.isplainobject, lodash.keys, and lodash.keysin, this seemingly small change can impact how lodash.merge interacts with built-in JavaScript objects and functions.
Developers upgrading from 3.2.1 to 3.3.0 should test their merging logic, particularly involving native objects or custom classes, to ensure compatibility. The library maintained the same MIT license, ensuring developers can freely use it in both personal and commercial projects. Both versions are sourced from the official lodash GitHub repository, offering reliable and well-documented code. Given the focus on native functions, version 3.3.0 may offer slight performance enhancements in specific use cases. This makes it a worthwhile upgrade for applications heavily relying on deep object merging if the native function aspect is relevant. While appearing minor, this dependency update underscores the continuous refinement within the lodash ecosystem for broader compatibility and optimized performance.
All the vulnerabilities related to the version 3.3.0 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.