This detection rule focuses on identifying attempts to exploit CVE-2025-55182, a critical remote code execution vulnerability found in React Server Components' Flight protocol. Attackers could leverage this vulnerability to execute arbitrary code on vulnerable servers by crafting malicious deserialization payloads. The detection criteria are based on specific patterns that suggest active exploitation, such as observing HTTP POST requests with command execution responses, error codes (500, 303), or specific strings that indicate prototype pollution. The rule aims to provide high-fidelity alerts to limit false positives associated with legitimate traffic.