{"id":"CVE-2016-2216","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-2216","generatedAt":"2026-10-27T23:19:46.553Z","title":"The HTTP header parsing code in Node.js 0.10.x before 0.10.42, 0.11.6 through 0.11.16, 0.12.x before 0.12.10, 4.x before 4.3.0, and 5.x before 5.6.0 allows remote attackers to bypass an HTTP response-splitting protection mechanism via UTF-8 encoded…","description":"The HTTP header parsing code in Node.js 0.10.x before 0.10.42, 0.11.6 through 0.11.16, 0.12.x before 0.12.10, 4.x before 4.3.0, and 5.x before 5.6.0 allows remote attackers to bypass an HTTP response-splitting protection mechanism via UTF-8 encoded Unicode characters in the HTTP header, as demonstrated by %c4%8d%c4%8a.","published":"2016-04-07T21:59:03.000Z","lastModified":"2026-06-17T00:43:41.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"cwe":["CWE-20"],"affected":["nodejs/node.js","fedoraproject/fedora"],"epss":{"score":0.07262,"percentile":0.94305,"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 (7.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://blog.safebreach.com/2016/02/09/http-response-splitting-in-node-js-root-cause-analysis/","source":"cve@mitre.org"},{"url":"http://info.safebreach.com/hubfs/Node-js-Response-Splitting.pdf","source":"cve@mitre.org"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177184.html","source":"cve@mitre.org"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177673.html","source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/135711/Node.js-HTTP-Response-Splitting.html","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/83141","source":"cve@mitre.org"},{"url":"https://nodejs.org/en/blog/vulnerability/february-2016-security-releases/","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201612-43","source":"cve@mitre.org"},{"url":"http://blog.safebreach.com/2016/02/09/http-response-splitting-in-node-js-root-cause-analysis/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://info.safebreach.com/hubfs/Node-js-Response-Splitting.pdf","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177184.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177673.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/135711/Node.js-HTTP-Response-Splitting.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/83141","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://nodejs.org/en/blog/vulnerability/february-2016-security-releases/","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201612-43","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-2216","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."}