alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-59734 Coolify - Health Check Parameter OS Command Injection Attempt"; flow:established,to_server; http.method; content:"PATCH"; http.uri; content:"/api/v1/applications/"; nocase; fast_pattern; http.request_body; content:"health_check_"; nocase; pcre:"/\x22health_check_(?:host|path|method)\x22\s*:\s*\x22[^\x22]*(?:\x60|\x24\x28|\x3b|\x7c|&&|\x0a|\x24\x7b)/i"; classtype:web-application-attack; reference:cve,CVE-2026-59734; reference:url,https://www.exploit.observer/?keyword=CVE-2026-59734&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=coolify&match=exact; sid:1094803; rev:1;)