alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-73666 OpenChoreo - Unauthenticated Backstage Catalog API Access Attempt"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/api/catalog/entities"; fast_pattern; nocase; classtype:web-application-attack; reference:cve,CVE-2026-73666; reference:url,https://www.exploit.observer/?keyword=CVE-2026-73666&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=openchoreo&match=exact; sid:1081600; rev:1;)