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#452 (comment)
React Server Componentsの脆弱性ブログ記事を翻訳しました。
Sync with react.devから該当の記事が降りていませんが、
CVSS 10.0 の重大な脆弱性情報のため、Sync を待たずに手動で記事を追加・翻訳しました。

Copilot AI review requested due to automatic review settings December 6, 2025 05:00
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Size changes

📦 Next.js Bundle Analysis for react-dev

This analysis was generated by the Next.js Bundle Analysis action. 🤖

Five Pages Changed Size

The following pages changed size from the code in this PR compared to its base branch:

Page Size (compressed) First Load
/404 133.59 KB (🟡 +135 B) 243.81 KB
/500 133.6 KB (🟡 +135 B) 243.82 KB
/[[...markdownPath]] 136.38 KB (🟡 +135 B) 246.6 KB
/errors 133.84 KB (🟡 +135 B) 244.06 KB
/errors/[errorCode] 133.82 KB (🟡 +135 B) 244.04 KB
Details

Only the gzipped size is provided here based on an expert tip.

First Load is the size of the global bundle plus the bundle for the individual page. If a user were to show up to your website and land on a given page, the first load size represents the amount of javascript that user would need to download. If next/link is used, subsequent page loads would only need to download that page's bundle (the number in the "Size" column), since the global bundle has already been downloaded.

Any third party scripts you have added directly to your app using the <script> tag are not accounted for in this analysis

Next to the size is how much the size has increased or decreased compared with the base branch of this PR. If this percentage has increased by 10% or more, there will be a red status indicator applied, indicating that special attention should be given to this.

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Pull request overview

This PR translates a critical security vulnerability blog post about React Server Components from English to Japanese. The post announces CVE-2025-55182, a CVSS 10.0 security vulnerability affecting React Server Components, and provides upgrade instructions for various frameworks and bundlers.

Key Changes

  • Added Japanese translation of the critical security vulnerability blog post dated December 3, 2025
  • Updated blog sidebar configuration to include the new security announcement
  • Added blog card entry on the index page for the vulnerability notice

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 5 comments.

File Description
src/sidebarBlog.json Added sidebar entry for the security vulnerability blog post with Japanese title
src/content/blog/index.md Added blog card for the security vulnerability announcement on the blog index page
src/content/blog/2025/12/03/critical-security-vulnerability-in-react-server-components.md Complete Japanese translation of the security vulnerability blog post including vulnerability details, affected packages, update instructions for various frameworks, timeline, and attribution

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Comment on lines +139 to +141
```bash
npm install react@latest react-dom@latest react-server-dom-parcel@latest
```
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コードブロックとその内容のインデントが不一致です。開始タグ ````bash` と終了タグ ````` にスペースによるインデントが含まれていますが、コマンド自体にはインデントがありません。インデントを削除して統一してください。

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Comment on lines +147 to +149
```bash
npm install react@latest react-dom@latest react-server-dom-turbopack@latest
```
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コードブロックとその内容のインデントが不一致です。開始タグ ````bash` と終了タグ ````` にスペースによるインデントが含まれていますが、コマンド自体にはインデントがありません。インデントを削除して統一してください。

Copilot uses AI. Check for mistakes.
Comment on lines +155 to +157
```bash
npm install react@latest react-dom@latest react-server-dom-webpack@latest
```
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Copilot AI Dec 6, 2025

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コードブロックのインデントが不一致です。開始タグ ````bash` と終了タグ ````` にスペースによるインデントが含まれていますが、他のセクションと一貫性がありません。インデントを削除して統一してください。

Copilot uses AI. Check for mistakes.
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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