alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET WEB_SPECIFIC_APPS Next.js Unauthenticated Remote Code Execution (CVE-2026-75604)"; flow:established,to_server; http.header_names; to_lowercase; content:"origin|0d 0a|"; http.request_body; content:"name|3d 22|$ACTION_REF_"; fast_pattern; content:"name|3d 22|$ACTION_"; pcre:"/^[^\x3a]+\x3a[0-2]/R"; content:"process.mainModule.require|28|"; reference:url,github.com/rafabd1/CVE-2026-75604-poc; reference:cve,2026-75604; classtype:web-application-attack; sid:2072389; rev:1; metadata:affected_product Next_js, attack_target Server, tls_state TLSDecrypt, created_at 2026_10_08, cve CVE_2026_75604, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, updated_at 2026_10_08, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)