Cloud Software Group has investigated the potential impact on customer-managed (on-premises) products and determined that they are not affected by this vulnerability.

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A pre-authentication remote code execution vulnerability (CVE-2025-55182) exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.