alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET WEB_SPECIFIC_APPS Langflow Unauthenticated Remote Code Execution (CVE-2026-0768)"; flow:established,to_server; http.uri; content:"/api/v1/validate/code"; fast_pattern; http.request_body; content:"exec|28|"; content:"raise Exception|28|"; pcre:"/exec\x28[^\x29]*?Exception\x28/"; http.method; content:"POST"; reference:url,github.com/HORKimhab/CVE-2026-0768/; reference:cve,2026-0768; classtype:web-application-attack; sid:2071908; rev:1; metadata:affected_product Langflow, attack_target Server, tls_state TLSDecrypt, created_at 2026_09_02, cve CVE_2026_0768, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Exploit, updated_at 2026_09_02, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)