{"id":"CVE-2019-5739","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-5739","generatedAt":"2026-10-27T21:14:59.259Z","title":"The behavior in Node.js 6.16.0 and earlier is a potential Denial of Service (DoS) attack vector.","description":"Keep-alive HTTP and HTTPS connections can remain open and inactive for up to 2 minutes in Node.js 6.16.0 and earlier. Node.js 8.0.0 introduced a dedicated server.keepAliveTimeout which defaults to 5 seconds. The behavior in Node.js 6.16.0 and earlier is a potential Denial of Service (DoS) attack vector. Node.js 6.17.0 introduces server.keepAliveTimeout and the 5-second default.","published":"2019-03-28T17:29:02.000Z","lastModified":"2026-06-17T02:38:08.000Z","status":"Modified","sourceIdentifier":"cve-request@iojs.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-400","CWE-770"],"affected":["nodejs/node.js","opensuse/leap"],"epss":{"score":0.04929,"percentile":0.92074,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (4.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00041.html","tags":["Third Party Advisory"],"source":"cve-request@iojs.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00046.html","tags":["Mailing List","Third Party Advisory"],"source":"cve-request@iojs.org"},{"url":"https://nodejs.org/en/blog/vulnerability/february-2019-security-releases/","tags":["Vendor Advisory"],"source":"cve-request@iojs.org"},{"url":"https://security.gentoo.org/glsa/202003-48","tags":["Third Party Advisory"],"source":"cve-request@iojs.org"},{"url":"https://security.netapp.com/advisory/ntap-20190502-0008/","tags":["Third Party Advisory"],"source":"cve-request@iojs.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00041.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00046.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://nodejs.org/en/blog/vulnerability/february-2019-security-releases/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202003-48","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20190502-0008/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-5739","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}