{"id":"CVE-2019-5645","title":"Rapid7 Metasploit HTTP Handler Denial of Service","summary":"By sending a specially crafted HTTP GET request to a listening Rapid7 Metasploit HTTP handler, an attacker can register an arbitrary regular expression. When evaluated, this malicious handler can either prevent new HTTP handler sessions …","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-400"],"vendor":"Rapid7","product":"Metasploit Framework","affected":["metasploit_framework <= 5.0.27"],"exploitAvailable":true,"published":"2020-09-01","updated":"2026-10-23","sourceUpdated":"2026-10-23T00:10:04.483Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2019-5645","references":[{"url":"https://github.com/rapid7/metasploit-framework/commit/5621d200ccf62e4a8f0dad80c1c74f4e0e52d86b"},{"url":"https://github.com/rapid7/metasploit-framework/pull/11966"},{"url":"https://github.com/rapid7/metasploit-framework/pull/12433"}],"tags":["cve.org","exploit-available"],"epss":0.49181,"epssPercentile":0.98878,"exploits":{"metasploit":["auxiliary/dos/http/metasploit_httphandler_dos"],"checkedAt":"2026-10-27T16:38:48.422Z"},"ingestedAt":"2026-10-23T01:11:52.507Z","slug":"CVE-2019-5645","body":"## Overview\n\nBy sending a specially crafted HTTP GET request to a listening Rapid7 Metasploit HTTP handler, an attacker can register an arbitrary regular expression. When evaluated, this malicious handler can either prevent new HTTP handler sessions from being established, or cause a resource exhaustion on the Metasploit server.\n\n## Affected\n\n- `metasploit_framework <= 5.0.27`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":63,"depthScoreParts":{"impact":41.3,"likelihood":9.8,"exploitation":12,"ransomware":0},"changes":[{"seq":229066,"id":"CVE-2019-5645","ts":1792890107750,"field":"epss","old":"0.41688","new":"0.49181"}]}