Lodash-es is a popular JavaScript utility library offering modularized ES module builds of Lodash, optimized for modern JavaScript development. Versions 4.3.0 represents a minor update over the 4.2.1 release, both maintaining the core functionality and benefits of the lodash-es package. Developers will find that both versions offer a comprehensive suite of functions for array manipulation, object handling, string operations, and more, all designed to simplify common programming tasks. Because it's distributed as ES modules it allows for smaller bundle sizes in projects using modern bundlers through tree shaking, importing only the functions used in your project.
The key difference between versions 4.3.0 and 4.2.1 lies in bug fixes, potential performance improvements, and minor feature enhancements implemented within the 4.3.0 release. So depending on the version in use, upgrading may address discovered issues. Given the minor version bump, the upgrade is highly likely to be seamless, and provide notable improvements for complex data manipulations and functional programming paradigms without introducing breaking changes. This ensures smooth integration into existing projects of all sizes, and provides consistent, reliable utility functions with ES modules optimization.
All the vulnerabilities related to the version 4.3.0 of the package
Prototype Pollution in lodash
Versions of lodash before 4.17.12 are vulnerable to Prototype Pollution. The function defaultsDeep allows 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 4.17.12 or later.
Regular Expression Denial of Service (ReDoS) in lodash
lodash prior to 4.7.11 is affected by: CWE-400: Uncontrolled Resource Consumption. The impact is: Denial of service. The component is: Date handler. The attack vector is: Attacker provides very long strings, which the library attempts to match using a regular expression. The fixed version is: 4.7.11.
Prototype Pollution in lodash
Versions of lodash prior to 4.17.19 are vulnerable to Prototype Pollution. The functions pick, set, setWith, update, updateWith, and zipObjectDeep allow a malicious user to modify the prototype of Object if the property identifiers are user-supplied. Being affected by this issue requires manipulating objects based on user-provided property values or arrays.
This vulnerability causes the addition or modification of an existing property that will exist on all objects and may lead to Denial of Service or Code Execution under specific circumstances.
Regular Expression Denial of Service (ReDoS) in lodash
All versions of package lodash prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.
Steps to reproduce (provided by reporter Liyuan Chen):
var lo = require('lodash');
function build_blank(n) {
var ret = "1"
for (var i = 0; i < n; i++) {
ret += " "
}
return ret + "1";
}
var s = build_blank(50000) var time0 = Date.now();
lo.trim(s)
var time_cost0 = Date.now() - time0;
console.log("time_cost0: " + time_cost0);
var time1 = Date.now();
lo.toNumber(s) var time_cost1 = Date.now() - time1;
console.log("time_cost1: " + time_cost1);
var time2 = Date.now();
lo.trimEnd(s);
var time_cost2 = Date.now() - time2;
console.log("time_cost2: " + time_cost2);
Command Injection in lodash
lodash versions prior to 4.17.21 are vulnerable to Command Injection via the template function.