Brace expansion is a handy npm package that enables shell-like brace expansion functionality within JavaScript environments. Versions 1.1.4 and 1.1.5 both offer this core capability, allowing developers to generate strings based on patterns containing braces. Common use cases involve generating lists of files, creating complex command-line arguments, or dynamically constructing configuration sets. Both versions depend on concat-map and balanced-match, important dependencies which handle efficient array concatenation and ensure correct handling of potentially nested structures within the brace expressions.
The observable distinctions between version 1.1.4 and its successor, 1.1.5, are primarily subtle. Examining the metadata, the most prominent change lies in the releaseDate. Version 1.1.5 was released on June 15, 2016, while version 1.1.4 saw daylight on May 1, 2016. This suggests that the newer version incorporates bug fixes, performance tweaks, or minor adjustments made in the intervening period. While the indicated dependencies remained consonant between versions, it's conceivable that internal code modifications addressed edge cases or improved overall performance without significantly altering the API. Developers should always lean toward using the most recent stable releases (in this case 1.1.5) to obtain the benefit of cumulative improvements and ensure the robustness of their applications when using brace expansion.
All the vulnerabilities related to the version 1.1.5 of the package
ReDoS in brace-expansion
Affected versions of brace-expansion are vulnerable to a regular expression denial of service condition.
var expand = require('brace-expansion');
expand('{,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,\n}');
Update to version 1.1.7 or later.
brace-expansion Regular Expression Denial of Service vulnerability
A vulnerability was found in juliangruber brace-expansion up to 1.1.11/2.0.1/3.0.0/4.0.0. It has been rated as problematic. Affected by this issue is the function expand of the file index.js. The manipulation leads to inefficient regular expression complexity. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 1.1.12, 2.0.2, 3.0.1 and 4.0.1 is able to address this issue. The name of the patch is a5b98a4f30d7813266b221435e1eaaf25a1b0ac5. It is recommended to upgrade the affected component.