Body-parser is a crucial Node.js middleware for effectively handling request bodies, enabling your applications to easily process data sent from clients. Analyzing versions 1.8.3 and 1.8.4 reveals very subtle differences, primarily reflecting internal updates and timing. Both versions maintain the same core dependencies, including essential packages such as qs for query string parsing, depd for deprecation tracking, bytes for byte manipulation, type-is for content-type checking, raw-body for efficient raw body handling, iconv-lite for character encoding conversions, media-typer for media type parsing, and on-finished for request completion detection. This consistency ensures predictable behavior across both versions for essential operations such as parsing JSON, URL-encoded data, and raw text. They also share the same development dependencies (mocha, should, istanbul, and supertest) providing a consistent testing environment.
The update from 1.8.3 to 1.8.4 seems to involve minor internal improvements or bug fixes, given the identical dependency structure and the very short time span between releases. The releaseDate indicates a difference of only a few days. For developers already using body-parser, the upgrade from 1.8.3 to 1.8.4 is likely seamless and requires no code modifications, offering continued stability and reliability. If you are integrating body-parser into your project, either version offers a solid foundation. Ensure your choice aligns with your specific needs and test the implementation adequately to prevent any issues related to your application context. Each version is released under the MIT license, making it suitable for usage in commercial projects.
All the vulnerabilities related to the version 1.8.4 of the package
body-parser vulnerable to denial of service when url encoding is enabled
body-parser <1.20.3 is vulnerable to denial of service when url encoding is enabled. A malicious actor using a specially crafted payload could flood the server with a large number of requests, resulting in denial of service.
this issue is patched in 1.20.3
Prototype Pollution Protection Bypass in qs
Affected version of qs are vulnerable to Prototype Pollution because it is possible to bypass the protection. The qs.parse function fails to properly prevent an object's prototype to be altered when parsing arbitrary input. Input containing [ or ] may bypass the prototype pollution protection and alter the Object prototype. This allows attackers to override properties that will exist in all objects, which may lead to Denial of Service or Remote Code Execution in specific circumstances.
Upgrade to 6.0.4, 6.1.2, 6.2.3, 6.3.2 or later.
qs vulnerable to Prototype Pollution
qs before 6.10.3 allows attackers to cause a Node process hang because an __ proto__ key can be used. In many typical web framework use cases, an unauthenticated remote attacker can place the attack payload in the query string of the URL that is used to visit the application, such as a[__proto__]=b&a[__proto__]&a[length]=100000000. The fix was backported to qs 6.9.7, 6.8.3, 6.7.3, 6.6.1, 6.5.3, 6.4.1, 6.3.3, and 6.2.4.
