Send package version 0.15.5 offers improvements over its predecessor, version 0.15.4, providing developers with a more refined and reliable static file serving solution. Both maintain the core functionality of "Better streaming static file server with Range and conditional-GET support," but subtle dependency updates enhance the newer version. The most notable difference lies in the "etag" dependency, upgraded from version ~1.8.0 to ~1.8.1. While seemingly minor, this update likely incorporates bug fixes or performance optimizations within the etag generation process, potentially impacting caching behavior and overall efficiency when serving static assets.
Another key update involves the introduction of debug in version 0.15.5. While this dependency was present in both versions, it had a change of ~2.6.8. and potentially incorporates bug fixes or performance optimizations.
Developers utilizing Send benefit from efficient static file delivery, supporting features like range requests for optimized media streaming and conditional GETs for browser caching. The comprehensive dependency list highlights Send's reliance on well-established libraries such as "ms" and "statuses", providing features such as time conversion utilities and handling HTTP status codes. Development dependencies such as ESLint and Mocha indicate a focus on code quality and testing rigor. Consequently, upgrading to version 0.15.5 makes sense for developers to leverage potential improvements in etag generation especially when working with caching-intensive applications, ensuring a more optimized experience in static file delivery and improving the general performance.
All the vulnerabilities related to the version 0.15.5 of the package
send vulnerable to template injection that can lead to XSS
passing untrusted user input - even after sanitizing it - to SendStream.redirect() may execute untrusted code
this issue is patched in send 0.19.0
users are encouraged to upgrade to the patched version of express, but otherwise can workaround this issue by making sure any untrusted inputs are safe, ideally by validating them against an explicit allowlist
successful exploitation of this vector requires the following:
mime Regular Expression Denial of Service when MIME lookup performed on untrusted user input
Affected versions of mime are vulnerable to regular expression denial of service when a mime lookup is performed on untrusted user input.
Update to version 2.0.3 or later.
debug Inefficient Regular Expression Complexity vulnerability
A vulnerability classified as problematic has been found in debug-js debug up to 3.0.x. This affects the function useColors of the file src/node.js. The manipulation of the argument str leads to inefficient regular expression complexity. Upgrading to version 3.1.0 is able to address this issue. The name of the patch is c38a0166c266a679c8de012d4eaccec3f944e685. It is recommended to upgrade the affected component. The identifier VDB-217665 was assigned to this vulnerability. The patch has been backported to the 2.6.x branch in version 2.6.9.
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.
