{"id":"CVE-2018-1304","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-1304","generatedAt":"2026-10-28T21:19:46.224Z","title":"It was, therefore, possible for unauthorised users to gain access to web application resources that should have been protected.","description":"The URL pattern of \"\" (the empty string) which exactly maps to the context root was not correctly handled in Apache Tomcat 9.0.0.M1 to 9.0.4, 8.5.0 to 8.5.27, 8.0.0.RC1 to 8.0.49 and 7.0.0 to 7.0.84 when used as part of a security constraint definition. This caused the constraint to be ignored. It was, therefore, possible for unauthorised users to gain access to web application resources that should have been protected. Only security constraints with a URL pattern of the empty string were affected.","published":"2018-02-28T20:29:00.000Z","lastModified":"2026-10-15T18:17:19.000Z","status":"Modified","sourceIdentifier":"security@apache.org","cvss":{"version":"3.0","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":[],"affected":["apache/tomcat","redhat/jboss enterprise application platform","redhat/jboss enterprise web server","debian/debian linux","canonical/ubuntu linux","oracle/fusion middleware","oracle/hospitality guest access","oracle/micros relate crm software","oracle/secure global desktop","redhat/jboss middleware"],"epss":{"score":0.1707,"percentile":0.97063,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.15254,"percentile":0.96663},{"date":"2026-09-22","score":0.1707,"percentile":0.96937}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 17.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html","tags":["Patch","Third Party Advisory"],"source":"security@apache.org"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html","tags":["Patch","Third Party Advisory"],"source":"security@apache.org"},{"url":"http://www.securityfocus.com/bid/103170","tags":["Third Party Advisory","VDB Entry"],"source":"security@apache.org"},{"url":"http://www.securitytracker.com/id/1040427","tags":["Third Party Advisory","VDB Entry"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:0465","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:0466","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:1320","tags":["Third Party 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BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}