Mocha 8.0.1 is a patch release of the popular JavaScript testing framework, building upon version 8.0.0. While both versions share the same core dependencies and development dependencies, indicating a focus on stability and maintaining the existing feature set, there are subtle differences developers should note. Notably, assetgraph-builder dependency has a version bump from 8.0.0 to 8.0.1 between the mocha versions. This tiny difference and any related fixes in Mocha 8.0.1 could impact projects using assetgraph-builder directly or indirectly through Mocha's internals.
For developers already using Mocha 8.0.0, upgrading to 8.0.1 offers the benefit of any bug fixes or minor improvements included in the patch, particularly those related to assetgraph-builder. The dependency lists are nearly identical, suggesting a minimal risk of breaking changes during the update. Both versions support a wide array of testing styles and environments, boasting dependencies like Chai, Sinon, and various browser testing tools via Karma, browserify and other tools. Mocha remains a versatile choice for unit, integration, and end-to-end testing in Node.js and browser-based JavaScript projects. Developers can leverage its flexible configuration options, reporter system, and extensive plugin ecosystem to tailor the framework to their specific needs. The consistent dependency versions across the two versions reinforces Mocha's commitment to backward compatibility and a smooth upgrading experience for existing users.
All the vulnerabilities related to the version 8.0.1 of the package
Regular Expression Denial of Service in debug
Affected versions of debug are vulnerable to regular expression denial of service when untrusted user input is passed into the o formatter.
As it takes 50,000 characters to block the event loop for 2 seconds, this issue is a low severity issue.
This was later re-introduced in version v3.2.0, and then repatched in versions 3.2.7 and 4.3.1.
Version 2.x.x: Update to version 2.6.9 or later. Version 3.1.x: Update to version 3.1.0 or later. Version 3.2.x: Update to version 3.2.7 or later. Version 4.x.x: Update to version 4.3.1 or later.
minimatch ReDoS vulnerability
A vulnerability was found in the minimatch package. This flaw allows a Regular Expression Denial of Service (ReDoS) when calling the braceExpand function with specific arguments, resulting in a Denial of Service.
flat vulnerable to Prototype Pollution
flat helps flatten/unflatten nested Javascript objects. A vulnerability, which was classified as critical, was found in hughsk flat up to 5.0.0. This affects the function unflatten of the file index.js. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). It is possible to initiate the attack remotely. Upgrading to version 5.0.1 can address this issue. The name of the patch is 20ef0ef55dfa028caddaedbcb33efbdb04d18e13. It is recommended to upgrade the affected component. The identifier VDB-216777 was assigned to this vulnerability.
Insecure serialization leading to RCE in serialize-javascript
serialize-javascript prior to 3.1.0 allows remote attackers to inject arbitrary code via the function "deleteFunctions" within "index.js".
An object such as {"foo": /1"/, "bar": "a\"@__R-<UID>-0__@"} was serialized as {"foo": /1"/, "bar": "a\/1"/}, which allows an attacker to escape the bar key. This requires the attacker to control the values of both foo and bar and guess the value of <UID>. The UID has a keyspace of approximately 4 billion making it a realistic network attack.
