{"id":"CVE-2018-12123","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-12123","generatedAt":"2026-10-29T04:16:42.430Z","title":"Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Hostname spoofing in URL parser for javascript protocol: If a Node.js application is using url.parse() to determine the URL hostname, that hostname can be spoofed by using a…","description":"Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Hostname spoofing in URL parser for javascript protocol: If a Node.js application is using url.parse() to determine the URL hostname, that hostname can be spoofed by using a mixed case \"javascript:\" (e.g. \"javAscript:\") protocol (other protocols are not affected). If security decisions are made about the URL based on the hostname, they may be incorrect.","published":"2018-11-28T17:29:00.000Z","lastModified":"2026-10-08T22:16:45.000Z","status":"Modified","sourceIdentifier":"cve-request@iojs.org","cvss":{"version":"3.1","score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"},"cwe":["CWE-115","CWE-20"],"affected":["nodejs/node.js"],"epss":{"score":0.04032,"percentile":0.90559,"date":"2026-10-28","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (4.03%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2019:1821","tags":["Third Party Advisory"],"source":"cve-request@iojs.org"},{"url":"https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/","tags":["Patch","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://access.redhat.com/errata/RHSA-2019:1821","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/","tags":["Patch","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-20241213-0008/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-12123","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."}