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Fix React Server Components CVE vulnerabilities#24

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Fix React Server Components CVE vulnerabilities#24
vercel[bot] wants to merge 1 commit into
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vercel/react-server-components-cve-vu-673ga2

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@vercel

@vercel vercel Bot commented Jan 3, 2026

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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 website-v4. 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


TL;DR

Upgraded Next.js and React dependencies to patch a critical Remote Code Execution (RCE) vulnerability in React Server Components.

Why we made these changes

A critical RCE vulnerability was identified in React Server Components, impacting frameworks like Next.js. This automated pull request upgrades the affected packages to patched versions to fully remediate the issue, as tracked in CVE-2025-55182 and CVE-2025-66478.

What changed?

  • package.json: Upgraded next to 15.1.11 and react/react-dom to ^19.0.0 to incorporate the security patches.

Validation

Manual verification is required to ensure the application builds and runs as expected after the dependency upgrades.

Description generated by Mesa. Update settings

Updated dependencies to fix Next.js and React CVE vulnerabilities.

The fix-react2shell-next tool automatically updated the following packages to their secure versions:
- next
- react-server-dom-webpack
- react-server-dom-parcel  
- react-server-dom-turbopack

All package.json files have been scanned and vulnerable versions have been patched to the correct fixed versions based on the official React advisory.

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

vercel Bot commented Jan 3, 2026

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

Project Deployment Review Updated (UTC)
website-v4 Ready Ready Preview, Comment Jan 3, 2026 9:00am

@cloudflare-workers-and-pages

cloudflare-workers-and-pages Bot commented Jan 3, 2026

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Deploying with  Cloudflare Workers  Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status Name Latest Commit Updated (UTC)
❌ Deployment failed
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website-v1 acd7d2f Jan 03 2026, 08:59 AM

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