Send, a popular npm package for serving static files with features like Range and conditional-GET support, saw an update from version 0.3.0 to 0.4.0 focusing on internal improvements and dependency adjustments. Developers considering an upgrade should note the change in dependencies. Version 0.4.0 replaces buffer-crc32 with finished (1.1.4), and introduces istanbul (0.2.10) as a development dependency for code coverage. Debug also gets a minor update from version 0.8.0 to 0.8.1. Supertest also receives an upgrade from version 0.10.0 to ~0.13.0 for testing purposes while support for connect 2.x was dropped.
Both versions maintain core features such as supporting mime types (1.2.11) and Range requests for efficient data transfer. The upgrade suggests a focus on code quality and testing, indicated by the inclusion of Istanbul. Developers using Send benefit from its ability to handle streaming static files, optimize bandwidth usage through Range requests, and ensure efficient caching with conditional-GET support. The upgrade from 0.3.0 to 0.4.0 improves the development and testing process, potentially leading to more robust static file serving in production environments, but you need to verify that no functionalities broke with the connect package deprecation.
All the vulnerabilities related to the version 0.4.0 of the package
Directory Traversal in send
Versions 0.8.3 and earlier of send are affected by a directory traversal vulnerability. When relying on the root option to restrict file access it may be possible for an application consumer to escape out of the restricted directory and access files in a similarly named directory.
For example, static(_dirname + '/public') would allow access to _dirname + '/public-restricted'.
Update to version 0.8.4 or later.
Root Path Disclosure in send
Versions of send prior to 0.11.2 are affected by an information leakage vulnerability which may allow an attacker to enumerate paths on the server filesystem.
Update to version 0.11.1 or later.
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.
Regular Expression Denial of Service in fresh
Affected versions of fresh are vulnerable to regular expression denial of service when parsing specially crafted user input.
Update to version 0.5.2 or later.
