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React
@react.dev

Researchers have found two new vulnerabilities in React Server Components while attempting to exploit the patches last week. These are new issues, separate from the critical CVE last week. The patch for React2Shell remains effective for the Remote Code Execution exploit.

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React
@react.dev

It’s common for critical CVEs to uncover follow‑up vulnerabilities. When a critical vulnerability is disclosed, researchers scrutinize adjacent code paths looking for variant exploit techniques to test whether the initial mitigation can be bypassed.

React
@react.dev

This pattern shows up across the industry, not just in JavaScript. For example, after Log4Shell, additional CVEs were reported as the community examined the original fix. Additional disclosures can be frustrating, but they are generally a sign of a healthy response cycle.