--- title: "CVE-2016-5388: Apache Tomcat 7.x through 7.0.70 and 8.x… | CubePath" description: "Apache Tomcat 7.x through 7.0.70 and 8.x through 8.5.4, when the CGI Servlet is enabled, follows RFC 3875 section 4.1.18 and therefore does not protect…" language: en source: https://cubepath.com/security/cve/CVE-2016-5388 --- # CVE-2016-5388: Apache Tomcat 7.x through 7.0.70 and 8.x… | CubePath ## Description Apache Tomcat 7.x through 7.0.70 and 8.x through 8.5.4, when the CGI Servlet is enabled, follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted client data in the HTTP\_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue. NOTE: the vendor states "A mitigation is planned for future releases of Tomcat, tracked as CVE-2016-5388"; in other words, this is not a CVE ID for a vulnerability. Official description from the CVE record, published by redhat. 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-2016-5388) ## 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 0.50896 (50.9% probability) Percentile 98.9% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA assessment as of Oct 15, 2026 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Automatable no Technical impact partial ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [RHSA-2016:1635](https://access.redhat.com/errata/RHSA-2016:1635) (access.redhat.com) vendor-advisory - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05320149) - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05324759) - [VU#797896](http://www.kb.cert.org/vuls/id/797896) (kb.cert.org) third-party-advisory - [oracle.com/technetwork/topics/security/linuxbulletinoct2016…](http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html) - [RHSA-2016:2045](http://rhn.redhat.com/errata/RHSA-2016-2045.html) (rhn.redhat.com) vendor-advisory - [RHSA-2016:2046](http://rhn.redhat.com/errata/RHSA-2016-2046.html) (rhn.redhat.com) vendor-advisory - [tomcat.apache.org/tomcat-7.0-doc/changelog.html](https://tomcat.apache.org/tomcat-7.0-doc/changelog.html) - [91818](http://www.securityfocus.com/bid/91818) (securityfocus.com) vdb-entry - [openSUSE-SU-2016:2252](http://lists.opensuse.org/opensuse-updates/2016-09/msg00025.html) (lists.opensuse.org) vendor-advisory - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05390722) - [h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en\_US…](https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en%5FUS&docId=emr%5Fna-hpesbhf03770en%5Fus) - [RHSA-2016:1624](http://rhn.redhat.com/errata/RHSA-2016-1624.html) (rhn.redhat.com) vendor-advisory - [apache.org/security/asf-httpoxy-response.txt](https://www.apache.org/security/asf-httpoxy-response.txt) - [httpoxy.org](https://httpoxy.org/) - [oracle.com/technetwork/security-advisory/cpujul2017-3236622…](http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html) - [1036331](http://www.securitytracker.com/id/1036331) (securitytracker.com) vdb-entry - [RHSA-2016:1636](https://access.redhat.com/errata/RHSA-2016:1636) (access.redhat.com) vendor-advisory - [\[debian-lts-announce\] 20190813 \[SECURITY\] \[DLA 1883-1\] tomcat8 security update](https://lists.debian.org/debian-lts-announce/2019/08/msg00015.html) (lists.debian.org) mailing-list - [\[activemq-issues\] 20190820 \[jira\] \[Created\] (AMQ-7279) Security Vulnerabilities in Libraries - jackson-databind-2.9.8.jar, tomcat-servlet-api-8.0.53.jar, tomcat-websocket-api-8.0.53.jar, zookeeper-3.4.6.jar, guava-18.0.jar, jetty-all-9.2.26.v20180806.jar, scala-library-2.11.0.jar](https://lists.apache.org/thread.html/053d9ce4d579b02203db18545fee5e33f35f2932885459b74d1e4272%40%3Cissues.activemq.apache.org%3E) (lists.apache.org) mailing-list - [\[activemq-issues\] 20190826 \[jira\] \[Created\] (AMQ-7288) Security Vulnerabilities in ActiveMQ dependent libraries.](https://lists.apache.org/thread.html/6d3d34adcf3dfc48e36342aa1f18ce3c20bb8e4c458a97508d5bfed1%40%3Cissues.activemq.apache.org%3E) (lists.apache.org) mailing-list - [\[activemq-issues\] 20190925 \[jira\] \[Created\] (AMQ-7310) Security Vulnerabilities in Tomcat-websocket-api.jar](https://lists.apache.org/thread.html/6b414817c2b0bf351138911c8c922ec5dd577ebc0b9a7f42d705752d%40%3Cissues.activemq.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-users\] 20200813 CVE reporting discrepencies](https://lists.apache.org/thread.html/rc6b2147532416cc736e68a32678d3947b7053c3085cf43a9874fd102%40%3Cusers.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-users\] 20200813 Re: CVE reporting discrepencies](https://lists.apache.org/thread.html/r2853582063cfd9e7fbae1e029ae004e6a83482ae9b70a698996353dd%40%3Cusers.tomcat.apache.org%3E) (lists.apache.org) mailing-list - [\[tomcat-users\] 20200814 Re: CVE reporting discrepencies](https://lists.apache.org/thread.html/rf21b368769ae70de4dee840a3228721ae442f1d51ad8742003aefe39%40%3Cusers.tomcat.apache.org%3E) (lists.apache.org) mailing-list ## Timeline 1. ID reserved Jun 10, 2016 2. Record published Jul 19, 2016 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, 19:58 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)