--- title: "CVE-2018-11784: Apache Tomcat vulnerability | CubePath" description: "When the default servlet in Apache Tomcat versions 9.0.0.M1 to 9.0.11, 8.5.0 to 8.5.33 and 7.0.23 to 7.0.90 returned a redirect to a directory (e.g…" language: en source: https://cubepath.com/security/cve/CVE-2018-11784 --- # CVE-2018-11784: Apache Tomcat vulnerability | CubePath ## Description When the default servlet in Apache Tomcat versions 9.0.0.M1 to 9.0.11, 8.5.0 to 8.5.33 and 7.0.23 to 7.0.90 returned a redirect to a directory (e.g. redirecting to '/foo/' when the user requested '/foo') a specially crafted URL could be used to cause the redirect to be generated to any URI of the attackers choice. Official description from the CVE record, published by apache. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2018-11784) ## Key data ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.97680 (97.7% probability) Percentile 99.9% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA assessment as of Jun 4, 2025 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Automatable no Technical impact partial ## Affected products Products listed in the CVE record, as the CNA published them. - Apache Tomcat - affected: 9.0.0.M1 to 9.0.11 - affected: 8.5.0 to 8.5.33 - affected: 7.0.23 to 7.0.90 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [oracle.com/technetwork/security-advisory/cpujan2019-5072801…](https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html) - [\[announce\] 20181003 \[SECURITY\] CVE-2018-11784 Apache Tomcat - Open Redirect](https://lists.apache.org/thread.html/23134c9b5a23892a205dc140cdd8c9c0add233600f76b313dda6bd75%40%3Cannounce.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [security.netapp.com/advisory/ntap-20181014-0002](https://security.netapp.com/advisory/ntap-20181014-0002/) - [105524](http://www.securityfocus.com/bid/105524) (securityfocus.com) vdb-entry - [RHSA-2019:0131](https://access.redhat.com/errata/RHSA-2019:0131) (access.redhat.com) vendor-advisory - [RHSA-2019:0485](https://access.redhat.com/errata/RHSA-2019:0485) (access.redhat.com) vendor-advisory - [RHSA-2019:0130](https://access.redhat.com/errata/RHSA-2019:0130) (access.redhat.com) vendor-advisory - [\[debian-lts-announce\] 20181014 \[SECURITY\] \[DLA 1544-1\] tomcat7 security update](https://lists.debian.org/debian-lts-announce/2018/10/msg00005.html) (lists.debian.org) mailing-list - [USN-3787-1](https://usn.ubuntu.com/3787-1/) (usn.ubuntu.com) vendor-advisory - [\[debian-lts-announce\] 20181015 \[SECURITY\] \[DLA 1545-1\] tomcat8 security update](https://lists.debian.org/debian-lts-announce/2018/10/msg00006.html) (lists.debian.org) mailing-list - [\[tomcat-dev\] 20190319 svn commit: r1855831 \[24/30\] - in /tomcat/site/trunk: ./ docs/ xdocs/](https://lists.apache.org/thread.html/eb6efa8d59c45a7a9eff94c4b925467d3b3fec8ba7697f3daa314b04%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20190319 svn commit: r1855831 \[25/30\] - in /tomcat/site/trunk: ./ docs/ xdocs/](https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20190325 svn commit: r1856174 \[22/29\] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/](https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20190325 svn commit: r1856174 \[23/29\] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/](https://lists.apache.org/thread.html/5c0e00fd31efc11e147bf99d0f03c00a734447d3b131ab0818644cdb%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20190325 svn commit: r1856174 \[24/29\] - in /tomcat/site/trunk: docs/ xdocs/ xdocs/stylesheets/](https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [FEDORA-2018-b18f9dd65b](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZ4PX4B3QTKRM35VJAVIEOPZAF76RPBP/) (lists.fedoraproject.org) vendor-advisory - [\[tomcat-dev\] 20190413 svn commit: r1857494 \[17/20\] - in /tomcat/site/trunk: ./ docs/ xdocs/](https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20190413 svn commit: r1857496 \[3/4\] - in /tomcat/site/trunk: ./ docs/ xdocs/](https://lists.apache.org/thread.html/e85e83e9954f169bbb77b44baae5a33d8de878df557bb32b7f793661%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20190413 svn commit: r1857494 \[16/20\] - in /tomcat/site/trunk: ./ docs/ xdocs/](https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20190415 svn commit: r1857582 \[18/22\] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/](https://lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20190415 svn commit: r1857582 \[17/22\] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/](https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20190415 svn commit: r1857582 \[19/22\] - in /tomcat/site/trunk: docs/ xdocs/stylesheets/](https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [oracle.com/technetwork/security-advisory/cpuapr2019-5072813…](https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html) - [openSUSE-SU-2019:1547](http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00030.html) (lists.opensuse.org) vendor-advisory - [RHSA-2019:1529](https://access.redhat.com/errata/RHSA-2019:1529) (access.redhat.com) vendor-advisory - [kc.mcafee.com/corporate/index?page=content&id=SB10284](https://kc.mcafee.com/corporate/index?page=content&id=SB10284) - [oracle.com/technetwork/security-advisory/cpujul2019-5072835…](https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html) - [openSUSE-SU-2019:1814](http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00056.html) (lists.opensuse.org) vendor-advisory - [oracle.com/technetwork/security-advisory/cpuoct2019-5072832…](https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html) - [DSA-4596](https://www.debian.org/security/2019/dsa-4596) (debian.org) vendor-advisory - [20191229 \[SECURITY\] \[DSA 4596-1\] tomcat8 security update](https://seclists.org/bugtraq/2019/Dec/43) (seclists.org) mailing-list - [oracle.com/security-alerts/cpujan2020.html](https://www.oracle.com/security-alerts/cpujan2020.html) - [\[tomcat-dev\] 20200203 svn commit: r1873527 \[24/30\] - /tomcat/site/trunk/docs/](https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20200203 svn commit: r1873527 \[25/30\] - /tomcat/site/trunk/docs/](https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20200213 svn commit: r1873980 \[27/34\] - /tomcat/site/trunk/docs/](https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20200213 svn commit: r1873980 \[28/34\] - /tomcat/site/trunk/docs/](https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-dev\] 20200213 svn commit: r1873980 \[29/34\] - /tomcat/site/trunk/docs/](https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [oracle.com/security-alerts/cpuapr2020.html](https://www.oracle.com/security-alerts/cpuapr2020.html) - [packetstormsecurity.com/files/163456/Apache-Tomcat-9.0.0M1-…](http://packetstormsecurity.com/files/163456/Apache-Tomcat-9.0.0M1-Open-Redirect.html) ## Timeline 1. ID reserved Jun 5, 2018 2. Record published Oct 4, 2018 3. Record last updated Oct 15, 2026 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:59 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)