On November 29th, Lachlan Davidson reported a security vulnerability in React that allows unauthe...On November 29th, Lachlan Davidson reported a security vulnerability in React that allows unauthe...
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On November 29th, Lachlan Davidson reported a security vulnerability in React that allows unauthenticated remote code execution by exploiting a flaw in how React decodes payloads sent to React Server Function endpoints.
Even if your app does not implement any React Server Function endpoints it may still be vulnerable if your app supports React Server Components.
This vulnerability was disclosed as CVE-2025-55182 and is rated CVSS 10.0.
The vulnerability is present in versions 19.0, 19.1.0, 19.1.1, and 19.2.0 of:
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