## Critical RCE Vulnerability in React Server Components Exposes Next.js Deployments
A critical remote code execution vulnerability has been identified in React Server Components, posing a significant threat to applications built on frameworks including Next.js. Tracked as CVE-2025-55182, the flaw enables unauthenticated attackers to execute arbitrary code on servers by exploiting insecure deserialization within the React Flight protocol. The vulnerability affects production environments and requires immediate attention from developers using affected frameworks.

The issue was discovered in the project foodify2, operated by aung-kyaw-wai-htuns-projects on the Vercel platform. Security advisories have been issued across multiple platforms: GitHub Security Advisory GHSA-9qr9-h5gf-34mp, the official React advisory page, and Next.js advisory CVE-2025-66478. Vercel has automatically generated a pull request to patch the vulnerable codebase, though the company cautions that the automated fix may not be comprehensive and requires manual review before merging.

The vulnerability represents a high-severity risk for any application leveraging React Server Components, as exploitation requires no authentication and targets the serialization mechanism of the React Flight protocol. Organizations are advised to consult the linked security advisories, assess their exposure, and apply patches accordingly rather than relying solely on the automated PR. The multi-platform coordination of this disclosure signals the severity with which the React and Next.js security teams view the issue.
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- **Source**: GitHub Issues
- **Sector**: The Lab
- **Tags**: react, next.js, rce, cve, vercel
- **Credibility**: unverified
- **Published**: 2026-04-29 15:54:15
- **ID**: 78281
- **URL**: https://whisperx.ai/en/intel/78281