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A critical security flaw in React Server Components can let attackers run code remotely without logging in.
Summary
React published the advisory, tracked as GHSA-xqc2-xf4c-x3h3, on October 14, 2026. The issue carries a CVSS v4 score of 9.5, and the React team recommends immediate updates for affected applications. The flaw affects react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack.
This is a brief wire summary, the full story (linked below) has the complete details.
KazaSec's take
Stories like this are part of why proactive security testing exists, finding the gap before someone else does is always cheaper than responding after the fact.
Coverage details
We've archived 296 other articles touching the same topic (vulnerability news, cyber security, vulnerability) , see the full security news archive.
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