{"id":"CVE-2018-1304","title":"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 constr…","summary":"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 constr…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","vendor":"apache","product":"tomcat","affected":["tomcat >= 7.0.0, <= 7.0.84","tomcat >= 8.0.0, <= 8.0.49","tomcat >= 8.5.0, <= 8.5.27","tomcat >= 9.0.0, <= 9.0.4","tomcat = 8.0.0","tomcat = 9.0.0","jboss_enterprise_application_platform = 6","jboss_enterprise_application_platform = 6.4","jboss_enterprise_web_server = 3.0.0","debian_linux = 7.0","debian_linux = 8.0","debian_linux = 9.0","ubuntu_linux = 14.04","ubuntu_linux = 16.04","ubuntu_linux = 17.10","ubuntu_linux = 18.04","fusion_middleware = 12.2.1.3.0","hospitality_guest_access = 4.2.0","hospitality_guest_access = 4.2.1","micros_relate_crm_software = 11.4","secure_global_desktop = 5.3","secure_global_desktop = 5.4","jboss_middleware = 1"],"published":"2018-02-28","updated":"2026-10-15","sourceUpdated":"2026-10-15T18:17:18.790","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2018-1304","references":[{"url":"http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html","label":"security@apache.org"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html","label":"security@apache.org"},{"url":"http://www.securityfocus.com/bid/103170","label":"security@apache.org"},{"url":"http://www.securitytracker.com/id/1040427","label":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:0465","label":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:0466","label":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:1320","label":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:1447","label":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:1448","label":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:1449","label":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:1450","label":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:1451","label":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:2939","label":"security@apache.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:2205","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/5c0e00fd31efc11e147bf99d0f03c00a734447d3b131ab0818644cdb%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/b1d7e2425d6fd2cebed40d318f9365b44546077e10949b01b1f8a0fb%40%3Cannounce.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/e85e83e9954f169bbb77b44baae5a33d8de878df557bb32b7f793661%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/eb6efa8d59c45a7a9eff94c4b925467d3b3fec8ba7697f3daa314b04%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E","label":"security@apache.org"},{"url":"https://lists.debian.org/debian-lts-announce/2018/03/msg00004.html","label":"security@apache.org"},{"url":"https://lists.debian.org/debian-lts-announce/2018/06/msg00008.html","label":"security@apache.org"},{"url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00044.html","label":"security@apache.org"},{"url":"https://security.netapp.com/advisory/ntap-20180706-0001/","label":"security@apache.org"},{"url":"https://usn.ubuntu.com/3665-1/","label":"security@apache.org"},{"url":"https://www.debian.org/security/2018/dsa-4281","label":"security@apache.org"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","label":"security@apache.org"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-50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1108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00044.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20180706-0001/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3665-1/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4281","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org","exploit-available"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-15T17:31:35.831075Z"},"epss":0.1707,"epssPercentile":0.97044,"exploits":{"github":2,"githubRepos":["https://github.com/knqyf263/CVE-2018-1304","https://github.com/thariyarox/tomcat_CVE-2018-1304_testing"],"checkedAt":"2026-10-15T18:24:32.188Z"},"exploitAvailable":true,"ingestedAt":"2026-10-15T18:23:58.393Z","slug":"CVE-2018-1304","body":"## Overview\n\nThe 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.\n\n## Affected\n\n- `tomcat >= 7.0.0, <= 7.0.84`\n- `tomcat >= 8.0.0, <= 8.0.49`\n- `tomcat >= 8.5.0, <= 8.5.27`\n- `tomcat >= 9.0.0, <= 9.0.4`\n- `tomcat = 8.0.0`\n- `tomcat = 9.0.0`\n- `jboss_enterprise_application_platform = 6`\n- `jboss_enterprise_application_platform = 6.4`\n- `jboss_enterprise_web_server = 3.0.0`\n- `debian_linux = 7.0`\n- `debian_linux = 8.0`\n- `debian_linux = 9.0`\n- `ubuntu_linux = 14.04`\n- `ubuntu_linux = 16.04`\n- `ubuntu_linux = 17.10`\n- `ubuntu_linux = 18.04`\n- `fusion_middleware = 12.2.1.3.0`\n- `hospitality_guest_access = 4.2.0`\n- `hospitality_guest_access = 4.2.1`\n- `micros_relate_crm_software = 11.4`\n- `secure_global_desktop = 5.3`\n- `secure_global_desktop = 5.4`\n- `jboss_middleware = 1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":32.5,"likelihood":3.4,"exploitation":12,"ransomware":0},"changes":[]}