{"cve":"CVE-2003-0866","nvd":{"published":"2003-11-17T05:00:00.000","modified":"2026-06-16T22:03:06.620","status":"Modified","description":"The Catalina org.apache.catalina.connector.http package in Tomcat 4.0.x up to 4.0.3 allows remote attackers to cause a denial of service via several requests that do not follow the HTTP protocol, which causes Tomcat to reject later requests.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=215506","http://secunia.com/advisories/30899","http://secunia.com/advisories/30908","http://sunsolve.sun.com/search/document.do?assetkey=1-26-239312-1","http://tomcat.apache.org/security-4.html"],"products":["apache:tomcat"],"source":"nvd","synced_at":"2026-10-19T19:35:54.859949650+00:00"},"epss":{"cve":"CVE-2003-0866","score":0.34816,"percentile":0.98428,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-7wj2-48c4-2684","url":"https://osv.dev/vulnerability/GHSA-7wj2-48c4-2684","summary":"Apache Tomcat Denial of Service vulnerability in the Catalina package","modified":"2023-11-08T03:56:45.369284Z","packages":[{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","ranges":[">=4.0 <4.1.0"],"fixed":["4.1.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}