Skip to content

Fix React Server Components RCE vulnerability - #1

Draft
vercel[bot] wants to merge 1 commit into
mainfrom
vercel/repo-for-react-flight-rce-advi-yoaxbb
Draft

Fix React Server Components RCE vulnerability#1
vercel[bot] wants to merge 1 commit into
mainfrom
vercel/repo-for-react-flight-rce-advi-yoaxbb

Conversation

@vercel

@vercel vercel Bot commented Dec 8, 2025

Copy link
Copy Markdown

Important

This is an automatic PR generated by Vercel to help you with patching efforts. We can't guarantee it's comprehensive, and it may contain mistakes. Please review our guidance before merging these changes.

A critical remote code execution (RCE) vulnerability in React Server Components, impacting frameworks such as Next.js, was identified in the project portfolio. The vulnerability enables unauthenticated RCE on the server via insecure deserialization in the React Flight protocol.

This issue is tracked under:

This automated pull request upgrades the affected React and Next.js packages to patched versions that fully remediate the issue.

More Info | security@vercel.com

React Flight / Next.js RCE Advisory - Assessment Report

VULNERABILITY ASSESSMENT
=======================

Project Status: ALREADY PATCHED ✓

The project uses Next.js 15.3.6, which is affected by the React Flight / Next.js RCE advisory.

FINDINGS:
1. Next.js Version: 15.3.6
   - Status: ✓ Already updated to patched version
   - Required patch: 15.3.x → 15.3.6
   - Current version matches requirement

2. React Flight Packages: NOT USED
   - react-server-dom-webpack: Not found
   - react-server-dom-parcel: Not found
   - react-server-dom-turbopack: Not found

3. React Versions:
   - react: ^18.3.1 (React 18 - not affected, no update needed)
   - react-dom: ^18.3.1 (React 18 - not affected, no update needed)

ACTIONS TAKEN
=============

No code changes were required. The project:
1. Already depends on Next.js 15.3.6 (the patched version for 15.3.x)
2. Does not use any vulnerable React Flight packages
3. Does not use vulnerable React 19.0.0/19.1.0/19.1.1/19.2.0 versions

VERIFICATION
============

✓ Build successful: npm run build completed without errors
✓ TypeScript validation: npm run typecheck passed
✓ Lockfile verified: package-lock.json resolves next@15.3.6 correctly
✓ No additional changes needed

CONCLUSION
==========

The portfolio project is already compliant with the React Flight / Next.js RCE advisory.
No package.json modifications, lockfile updates, or patches were necessary.

Co-authored-by: Vercel <vercel[bot]@users.noreply.github.com>
@vercel

vercel Bot commented Dec 8, 2025

Copy link
Copy Markdown
Author

The latest updates on your projects. Learn more about Vercel for GitHub.

Project Deployment Preview Comments Updated (UTC)
portfolio Ready Ready Preview Comment Dec 8, 2025 6:19pm

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

0 participants