## Critical RCE Vulnerability in React Server Components Tracked as CVE-2025-55182 Affects Next.js Deployments
A critical remote code execution vulnerability has been identified in React Server Components, posing a significant security risk to applications built on frameworks including Next.js. The flaw enables unauthenticated remote code execution on affected servers through insecure deserialization within the React Flight protocol. Security researchers discovered the vulnerability in the visio-conf project hosted on Vercel's platform, triggering a coordinated disclosure process across multiple major ecosystem participants.

The issue is tracked under three separate advisories: GitHub Security Advisory GHSA-9qr9-h5gf-34mp, React Advisory CVE-2025-55182, and Next.js Advisory CVE-2025-66478. Vercel has responded by automatically generating a pull request to upgrade dependencies and patch the flaw in affected projects. However, the platform cautions that the automated fix may not be comprehensive and could contain errors, urging maintainers to carefully review the guidance before merging any changes.

The vulnerability carries serious implications for the broader web development ecosystem, given the widespread adoption of Next.js and React Server Components across production environments. Organizations running vulnerable deployments face the risk of complete server compromise without requiring authentication. Security teams should prioritize reviewing active Next.js projects, cross-referencing against the published CVE identifiers, and applying official patches where available. The presence of automated remediation suggests the vulnerability is actively being exploited or carries high exploitation potential in the wild.
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- **Source**: GitHub Issues
- **Sector**: The Lab
- **Tags**: React Server Components, RCE, Next.js, CVE-2025-55182, Vercel
- **Credibility**: unverified
- **Published**: 2026-05-03 23:54:07
- **ID**: 79154
- **URL**: https://whisperx.ai/en/intel/79154