alert http any any -> any any (msg:"ET WEB_SPECIFIC_APPS IBM Langflow OSS Authenticated Remote Code Execution (CVE-2026-17633)"; flow:established,to_server; http.uri; content:"/api/v1/custom_component"; fast_pattern; startswith; http.header; to_lowercase; content:"authorization|3a 20|bearer|20|"; http.request_body; strip_whitespace; content:"|22|code|22 3a 22|"; pcre:"/^[^\x22]*?import\s/R"; reference:url,github.com/Oscar-Collado/langflow-CVE-2026-17633-PoC; reference:cve,2026-17633; classtype:web-application-attack; sid:2072259; rev:1; metadata:affected_product Langflow, attack_target Server, tls_state TLSDecrypt, created_at 2026_09_25, cve CVE_2026_17633, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, updated_at 2026_09_25, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)