{"id":"CVE-2018-12537","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-12537","generatedAt":"2026-10-28T20:27:57.224Z","title":"This allow unfiltered values to inject a new header in the client request or server response.","description":"In Eclipse Vert.x version 3.0 to 3.5.1, the HttpServer response headers and HttpClient request headers do not filter carriage return and line feed characters from the header value. This allow unfiltered values to inject a new header in the client request or server response.","published":"2018-08-14T19:29:00.000Z","lastModified":"2026-06-17T01:37:56.000Z","status":"Modified","sourceIdentifier":"emo@eclipse.org","cvss":{"version":"3.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},"cwe":["CWE-93","CWE-20"],"affected":["eclipse/vert.x"],"epss":{"score":0.02482,"percentile":0.84503,"date":"2026-10-27","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 (2.48%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2018:2371","tags":["Third Party Advisory"],"source":"emo@eclipse.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:3768","tags":["Third Party Advisory"],"source":"emo@eclipse.org"},{"url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=536038","tags":["Issue Tracking","Third Party Advisory"],"source":"emo@eclipse.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1591072","tags":["Issue Tracking","Third Party Advisory"],"source":"emo@eclipse.org"},{"url":"https://github.com/eclipse/vert.x/commit/1bb6445226c39a95e7d07ce3caaf56828e8aab72","tags":["Third Party Advisory"],"source":"emo@eclipse.org"},{"url":"https://github.com/eclipse/vert.x/issues/2470","tags":["Third Party Advisory"],"source":"emo@eclipse.org"},{"url":"https://www.compass-security.com/fileadmin/Datein/Research/Advisories/CSNC-2018-021_vertx.txt","tags":["Third Party Advisory"],"source":"emo@eclipse.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:2371","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3768","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=536038","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1591072","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/eclipse/vert.x/commit/1bb6445226c39a95e7d07ce3caaf56828e8aab72","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/eclipse/vert.x/issues/2470","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.compass-security.com/fileadmin/Datein/Research/Advisories/CSNC-2018-021_vertx.txt","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-12537","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."}