(この記事は日本語でも読むことが出来ます。) Disclaimer GitHub is running a bug bounty program on HackerOne, and as part of this program, vulnerability research is permitted by the safe harbor. This article describes a vulnerability that I discovered as a result of my investigation in compliance with the safe harbor criteria and is not intended to encourage unauthorized vulnerability research activities. If you find a vulnerability on GitHub, please report it to GitHub Bug Bounty. TL;DR In the actions/runner repository, which hosts the source

(この記事は日本語でも読むことが出来ます。) Disclaimer Deno Land Inc., which develops Deno, isn’t running bug bounty programs, so they don’t explicitly allow vulnerability assessments. This article describes the vulnerabilities that were reported as potential vulnerabilities, using publicly available information. This was done without actually exploiting/demonstrating the vulnerabilities and it’s not intended to encourage you to perform an unauthorized vulnerability assessment. If you find any vulnerabilities in Deno-related services/products, please report them to [email protected] Also, the information contained in this article may be inaccurate

Preface Definitely Typed, a project which manages npm packages inside the @types scope, is supported by Microsoft. However, it is not in the scope of the safe harbor for Microsoft’s bug bounty program.1 This article describes the vulnerabilities that were reported as potential vulnerabilities, using publicly available information. This was done without actually exploiting / demonstrating the vulnerabilities. This article is not intended to encourage you to perform an unauthorized vulnerability assessment. If you find any vulnerabilities in Definitely Typed related products, please report them to members of Definitely Typed. TL;DR There were vulnerabilities in the pull request management bot of Definitely Typed, which allowed an attacker to merge a malicious pull request into DefinitelyTyped/DefinitelyTyped.

Preface (日本語版も公開されています。) While PyPI has a security page, they don’t have a clear policy for vulnerability assessments.1 This article describes the vulnerabilities that were reported as potential vulnerabilities, using publicly available information. This was done without actually exploiting / demonstrating the vulnerabilities. This article is not intended to encourage you to perform an unauthorized vulnerability assessment. If you find any vulnerabilities in PyPI, please report them to [email protected] TL;DR There was a vulnerability in GitHub Actions of PyPI’s repository, which allowed a malicious pull request

Preface (日本語版も公開されています。) Cloudflare, which runs cdnjs, is running a “Vulnerability Disclosure Program” on HackerOne, which allows hackers to perform vulnerability assessments. This article describes vulnerabilities reported through this program and published with the permission of the Cloudflare security team. So this article is not intended to recommend you to perform an unauthorized vulnerability assessment. If you found any vulnerabilities in Cloudflare’s product, please report it to Cloudflare’s vulnerability disclosure program. TL;DR There was a vulnerability in the cdnjs library update server that could execute arbitrary

この記事は日本語でも投稿されています: https://blog.ryotak.net/post/homebrew-security-incident/ (もし日本語が読める場合、筆者は英語がそこまで得意ではないため、日本語の記事を読むことをお勧めします。) (Official blog post about this incident is available here: https://brew.sh/2021/04/21/security-incident-disclosure/) Preface Homebrew project is running a “Vulnerability Disclosure Program” on HackerOne, which allows hackers to perform the vulnerability