New React RSC Vulnerabilities Enable DoS and Source Code Exposure

New React RSC Vulnerabilities Enable DoS and Source Code Exposure

The React team has issued security updates to fix multiple vulnerabilities in React Server Components that could lead to denial-of-service or source code exposure. These flaws were identified through active security research and exploit testing, emphasizing the importance of prompt updates. #ReactServerComponents #CVEs #ServerFunctionVulnerabilities

Keypoints

  • The vulnerabilities include denial-of-service and information leak issues in React Server Components.
  • Three CVEs (CVE-2025-55184, CVE-2025-67779, CVE-2025-55183) were identified with varying severity scores.
  • Exploitation of some vulnerabilities requires specific conditions, such as exposed string arguments in Server Functions.
  • Affected versions of react-server-dom packages have been listed and should be updated immediately.
  • Researchers credited with discovering these flaws highlight ongoing security efforts and industry-wide challenges.

Read More: https://thehackernews.com/2025/12/new-react-rsc-vulnerabilities-enable.html