Version Details and Security Vulnerabilities

📦

esbuild

0.17.15

Comparision Betweeen 0.17.15 and 0.17.14

Identify the differences between the current version of the package and the previous one.

Version

Dependencies

Dev Dependencies

Peer Dependencies

Distributed Files

Unpacked Size

127.08 KB

Version 0.17.15 Details

Esbuild, a renowned JavaScript and CSS bundler and minifier celebrated for its exceptional speed, has released version 0.17.15 following version 0.17.14. While the core functionality and overarching description remain consistent between the two versions, a closer inspection reveals nuanced differences relevant to developers.

The primary distinction lies in the version numbers of the package's myriad dependencies. Both stable versions rely on a suite of platform-specific packages prefixed with @esbuild/, covering a wide range of operating systems and architectures, including Linux (arm, x64, ia32, arm64, ppc64, s390x, loong64, riscv64, mips64el), Windows (x64, ia32, arm64), macOS (x64, arm64), Android (arm, x64, arm64), FreeBSD (x64, arm64), NetBSD (x64), SunOS (x64), and OpenBSD (x64). In version 0.17.15, these dependencies are all updated to version 0.17.15 to be consistent with the main package version. Similarly, version 0.17.14 relies on version 0.17.14 of the same dependencies. This indicates that the update likely incorporates bug fixes, performance improvements, or compatibility adjustments within these platform-specific components.

Developers considering upgrading should note the releaseDate. Version 0.17.15 was released on April 1, 2023, whereas version 0.17.14 was released on March 26, 2023. This time difference suggests that 0.17.15 contains potentially important updates addressed after the release of 0.17.14. Furthermore, the consistency of fileCount and unpackedSize between the two versions implies no significant changes in the overall size or number of files within the package. Thus, the upgrade should be relatively seamless, primarily involving updating the dependency versions. Esbuild remains a compelling choice for developers seeking a fast and efficient build tool, and staying up-to-date with the latest minor version ensures access to the latest enhancements and bug fixes.

Security Vulnerabilities

This site is an independent open-source project and is not affiliated with, endorsed by, or sponsored by npm, Inc. or GitHub, Inc. The name “npm” is a registered trademark of npm, Inc., used here solely to describe compatibility and reference publicly available npm package data.

Version Details and Security Vulnerabilities

📦

esbuild

0.17.15

Comparision Betweeen 0.17.15 and 0.17.14

Identify the differences between the current version of the package and the previous one.

Version

Dependencies

Dev Dependencies

Peer Dependencies

Distributed Files

Unpacked Size

127.08 KB

Version 0.17.15 Details

Security Vulnerabilities

Security Details

Comprehensive list of direct or transitive vulnerabilities for version 0.17.15 of the package esbuild.

All Security Vulnerabilities

All the vulnerabilities related to the version 0.17.15 of the package

Summary:

esbuild enables any website to send any requests to the development server and read the response

Details:

Summary

esbuild allows any websites to send any request to the development server and read the response due to default CORS settings.

Details

esbuild sets Access-Control-Allow-Origin: * header to all requests, including the SSE connection, which allows any websites to send any request to the development server and read the response.

https://github.com/evanw/esbuild/blob/df815ac27b84f8b34374c9182a93c94718f8a630/pkg/api/serve_other.go#L121 https://github.com/evanw/esbuild/blob/df815ac27b84f8b34374c9182a93c94718f8a630/pkg/api/serve_other.go#L363

Attack scenario:

The attacker serves a malicious web page (http://malicious.example.com).
The user accesses the malicious web page.
The attacker sends a fetch('http://127.0.0.1:8000/main.js') request by JS in that malicious web page. This request is normally blocked by same-origin policy, but that's not the case for the reasons above.
The attacker gets the content of http://127.0.0.1:8000/main.js.

In this scenario, I assumed that the attacker knows the URL of the bundle output file name. But the attacker can also get that information by

Fetching /index.html: normally you have a script tag here
Fetching /assets: it's common to have a assets directory when you have JS files and CSS files in a different directory and the directory listing feature tells the attacker the list of files
Connecting /esbuild SSE endpoint: the SSE endpoint sends the URL path of the changed files when the file is changed (new EventSource('/esbuild').addEventListener('change', e => console.log(e.type, e.data)))
Fetching URLs in the known file: once the attacker knows one file, the attacker can know the URLs imported from that file

The scenario above fetches the compiled content, but if the victim has the source map option enabled, the attacker can also get the non-compiled content by fetching the source map file.

PoC

Download reproduction.zip
Extract it and move to that directory
Run npm i
Run npm run watch
Run fetch('http://127.0.0.1:8000/app.js').then(r => r.text()).then(content => console.log(content)) in a different website's dev tools.

Impact

Users using the serve feature may get the source code stolen by malicious websites.

Details about esbuild@0.17.15

Security Details

Comprehensive list of direct or transitive vulnerabilities for version 0.17.15 of the package esbuild.

All Security Vulnerabilities

All the vulnerabilities related to the version 0.17.15 of the package

Summary:

esbuild enables any website to send any requests to the development server and read the response

Details:

Summary

esbuild allows any websites to send any request to the development server and read the response due to default CORS settings.

Details

esbuild sets Access-Control-Allow-Origin: * header to all requests, including the SSE connection, which allows any websites to send any request to the development server and read the response.

Attack scenario:

The attacker serves a malicious web page (http://malicious.example.com).
The user accesses the malicious web page.
The attacker sends a fetch('http://127.0.0.1:8000/main.js') request by JS in that malicious web page. This request is normally blocked by same-origin policy, but that's not the case for the reasons above.
The attacker gets the content of http://127.0.0.1:8000/main.js.

In this scenario, I assumed that the attacker knows the URL of the bundle output file name. But the attacker can also get that information by

Fetching /index.html: normally you have a script tag here
Fetching /assets: it's common to have a assets directory when you have JS files and CSS files in a different directory and the directory listing feature tells the attacker the list of files
Connecting /esbuild SSE endpoint: the SSE endpoint sends the URL path of the changed files when the file is changed (new EventSource('/esbuild').addEventListener('change', e => console.log(e.type, e.data)))
Fetching URLs in the known file: once the attacker knows one file, the attacker can know the URLs imported from that file

The scenario above fetches the compiled content, but if the victim has the source map option enabled, the attacker can also get the non-compiled content by fetching the source map file.

PoC

Download reproduction.zip
Extract it and move to that directory
Run npm i
Run npm run watch
Run fetch('http://127.0.0.1:8000/app.js').then(r => r.text()).then(content => console.log(content)) in a different website's dev tools.

Impact

Users using the serve feature may get the source code stolen by malicious websites.

Details about esbuild@0.17.15

Version Details and Security Vulnerabilities

esbuild

Comparision Betweeen 0.17.15 and 0.17.14

Version 0.17.15 Details

Security Vulnerabilities

Version Details and Security Vulnerabilities

esbuild

Comparision Betweeen 0.17.15 and 0.17.14

Version 0.17.15 Details

Security Vulnerabilities

Security Details

All

Transitive Dependencies

Package

All Security Vulnerabilities

Summary

Details

PoC

Impact

Security Details

All

Transitive Dependencies

Package

All Security Vulnerabilities

Summary

Details

PoC

Impact

Version Details and Security Vulnerabilities

esbuild

Comparision Betweeen 0.17.15 and 0.17.14

Version 0.17.15 Details

Security Vulnerabilities

Version Details and Security Vulnerabilities

esbuild

Comparision Betweeen 0.17.15 and 0.17.14

Version 0.17.15 Details

Security Vulnerabilities

Security Details

All

Transitive Dependencies

Package

All Security Vulnerabilities

esbuild@0.17.15 GHSA-67mh-4wv8-2f99 5.3

Summary

Details

PoC

Impact

Security Details

All

Transitive Dependencies

Package

All Security Vulnerabilities

esbuild@0.17.15 GHSA-67mh-4wv8-2f99 5.3

Summary

Details

PoC

Impact