{"answers":{"affected":"6 open source packages ship an affected version, including org.apache.tomcat.embed:tomcat-embed-core. It affects 15 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-11784 exists.","fix":"Upgrade org.apache.tomcat.embed:tomcat-embed-core to a fixed version for your release line: 7.0.91, 8.5.34 or 9.0.12.","what":"CVE-2018-11784 is a medium-severity vulnerability in Apache Tomcat, published on 4 Oct 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2018-11784 and fix it if it is affected.\n\nWhat it is: CVE-2018-11784 is a medium-severity vulnerability in Apache Tomcat, published on 4 Oct 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-11784 exists.\n\nAffected packages and fixed versions:\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 7.0.23; fixed in 7.0.91\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 7.0.23; fixed in 7.0.91\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 8.5.0; fixed in 8.5.34\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 8.5.0; fixed in 8.5.34\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 9.0.0; fixed in 9.0.12\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 9.0.0; fixed in 9.0.12\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2018-11784/ (Markdown: https://insights.sbomify.com/CVE-2018-11784/index.md)","id":"CVE-2018-11784","markdown":"https://insights.sbomify.com/CVE-2018-11784/index.md","name":"CVE-2018-11784","record":{"aliases":["DLA-1544-1","DLA-1545-1","GHSA-5q99-f34m-67gc","RHSA-2019:0485","SUSE-SU-2018:3393-1","SUSE-SU-2018:3935-1","SUSE-SU-2018:3968-1","UBUNTU-CVE-2018-11784","USN-3787-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache Tomcat","requires_auth":"none","summary":"Attackers can craft URLs to redirect users to arbitrary external sites via the default servlet, potentially facilitating phishing attacks.","user_interaction":"required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"tomcat","vendor":"apache"},{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"snap_creator_framework","vendor":"netapp"},{"product":"communications_application_session_controller","vendor":"oracle"},{"product":"hospitality_guest_access","vendor":"oracle"},{"product":"instantis_enterprisetrack","vendor":"oracle"},{"product":"retail_order_broker","vendor":"oracle"},{"product":"secure_global_desktop","vendor":"oracle"},{"product":"enterprise_linux_desktop","vendor":"redhat"},{"product":"enterprise_linux_server","vendor":"redhat"},{"product":"enterprise_linux_server_aus","vendor":"redhat"},{"product":"enterprise_linux_server_eus","vendor":"redhat"},{"product":"enterprise_linux_server_tus","vendor":"redhat"},{"product":"enterprise_linux_workstation","vendor":"redhat"}],"cvss":{"score":4.3,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-601","name":"URL Redirection to Untrusted Site"}],"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.","ecosystems":["Maven","Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation","SUSE:Linux Enterprise Module for Web and Scripting 15","SUSE:Linux Enterprise Server 11 SP4","SUSE:Linux Enterprise Server 12 SP3","SUSE:Linux Enterprise Server for SAP Applications 11 SP4","SUSE:Linux Enterprise Server for SAP Applications 12 SP3"],"exploits":{"exploitdb":1,"first_seen":"2021-07-13","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":1,"refs":[{"date":"2021-07-13","kind":"exploitdb","ref":"50118","stars":null,"title":"Apache Tomcat 9.0.0.M1 - Open Redirect"},{"date":"2024-05-27T14:28:30Z","kind":"github_poc","ref":"https://github.com/Cappricio-Securities/CVE-2018-11784","stars":0,"title":"Apache Tomcat - Open Redirect"},{"date":null,"kind":"nuclei","ref":"http/cves/2018/CVE-2018-11784.yaml","stars":null,"title":"Apache Tomcat - Open Redirect"}],"tier":"weaponised"},"has_fix":true,"headline":"Apache Tomcat Open Redirect vulnerability","id":"CVE-2018-11784","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"apache:tomcat","products":["apache:tomcat","canonical:ubuntu_linux","debian:debian_linux","oracle:instantis_enterprisetrack","redhat:enterprise_linux_desktop","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_eus","redhat:enterprise_linux_server_tus","redhat:enterprise_linux_workstation"],"type":"open_redirect","year":"2018"},"n_packages":51,"n_references":39,"next":{"headline":"Missing authorization in Apache Impala","id":"CVE-2018-11785"},"packages":[{"ecosystem":"Maven","fixed":["7.0.91"],"introduced":["7.0.23"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":null,"source":"GHSA-5q99-f34m-67gc"},{"ecosystem":"Maven","fixed":["7.0.91"],"introduced":["7.0.23"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","source":"GHSA-5q99-f34m-67gc"},{"ecosystem":"Maven","fixed":["8.5.34"],"introduced":["8.5.0"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":null,"source":"GHSA-5q99-f34m-67gc"},{"ecosystem":"Maven","fixed":["8.5.34"],"introduced":["8.5.0"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","source":"GHSA-5q99-f34m-67gc"},{"ecosystem":"Maven","fixed":["9.0.12"],"introduced":["9.0.0"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":null,"source":"GHSA-5q99-f34m-67gc"},{"ecosystem":"Maven","fixed":["9.0.12"],"introduced":["9.0.0"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","source":"GHSA-5q99-f34m-67gc"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat","purl":"pkg:rpm/redhat/tomcat","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-admin-webapps","purl":"pkg:rpm/redhat/tomcat-admin-webapps","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-docs-webapp","purl":"pkg:rpm/redhat/tomcat-docs-webapp","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-el-2.2-api","purl":"pkg:rpm/redhat/tomcat-el-2.2-api","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-javadoc","purl":"pkg:rpm/redhat/tomcat-javadoc","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-jsp-2.2-api","purl":"pkg:rpm/redhat/tomcat-jsp-2.2-api","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-jsvc","purl":"pkg:rpm/redhat/tomcat-jsvc","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-lib","purl":"pkg:rpm/redhat/tomcat-lib","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-servlet-3.0-api","purl":"pkg:rpm/redhat/tomcat-servlet-3.0-api","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-webapps","purl":"pkg:rpm/redhat/tomcat-webapps","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat","purl":"pkg:rpm/redhat/tomcat","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-admin-webapps","purl":"pkg:rpm/redhat/tomcat-admin-webapps","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-docs-webapp","purl":"pkg:rpm/redhat/tomcat-docs-webapp","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-el-2.2-api","purl":"pkg:rpm/redhat/tomcat-el-2.2-api","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-javadoc","purl":"pkg:rpm/redhat/tomcat-javadoc","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-jsp-2.2-api","purl":"pkg:rpm/redhat/tomcat-jsp-2.2-api","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-jsvc","purl":"pkg:rpm/redhat/tomcat-jsvc","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-lib","purl":"pkg:rpm/redhat/tomcat-lib","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-servlet-3.0-api","purl":"pkg:rpm/redhat/tomcat-servlet-3.0-api","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-webapps","purl":"pkg:rpm/redhat/tomcat-webapps","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat","purl":"pkg:rpm/redhat/tomcat","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-admin-webapps","purl":"pkg:rpm/redhat/tomcat-admin-webapps","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-docs-webapp","purl":"pkg:rpm/redhat/tomcat-docs-webapp","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-el-2.2-api","purl":"pkg:rpm/redhat/tomcat-el-2.2-api","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-javadoc","purl":"pkg:rpm/redhat/tomcat-javadoc","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-jsp-2.2-api","purl":"pkg:rpm/redhat/tomcat-jsp-2.2-api","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-jsvc","purl":"pkg:rpm/redhat/tomcat-jsvc","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-lib","purl":"pkg:rpm/redhat/tomcat-lib","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-servlet-3.0-api","purl":"pkg:rpm/redhat/tomcat-servlet-3.0-api","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-webapps","purl":"pkg:rpm/redhat/tomcat-webapps","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat","purl":"pkg:rpm/redhat/tomcat","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-admin-webapps","purl":"pkg:rpm/redhat/tomcat-admin-webapps","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-docs-webapp","purl":"pkg:rpm/redhat/tomcat-docs-webapp","source":"RHSA-2019:0485"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.0.76-9.el7_6"],"introduced":["0"],"last_affected":[],"package":"tomcat-el-2.2-api","purl":"pkg:rpm/redhat/tomcat-el-2.2-api","source":"RHSA-2019:0485"}],"prev":{"headline":"Information disclosure in Apache Traffic Server","id":"CVE-2018-11783"},"products":["Apache Tomcat"],"published":"2018-10-04","related":[{"cvss_score":10,"headline":"Apache Tomcat Path Equivalence","id":"CVE-2025-24813","kev_date_added":"2025-04-01","published":"2025-03-10"},{"cvss_score":9.8,"headline":"Apache Tomcat Remote Code Execution","id":"CVE-2016-8735","kev_date_added":"2023-05-12","published":"2017-04-06"},{"cvss_score":8.1,"headline":"Apache Tomcat Remote Code Execution","id":"CVE-2017-12617","kev_date_added":"2022-03-25","published":"2017-10-03"},{"cvss_score":8.1,"headline":"Apache Tomcat on Windows Remote Code Execution","id":"CVE-2017-12615","kev_date_added":"2022-03-25","published":"2017-09-19"},{"cvss_score":7.5,"headline":"Apache Tomcat Missing Encryption of Sensitive Data","id":"CVE-2026-34486","kev_date_added":"2026-08-04","published":"2026-04-09"},{"cvss_score":9.8,"headline":"Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete","id":"CVE-2026-65637","kev_date_added":null,"published":"2026-08-25"},{"cvss_score":9.8,"headline":"Apache Tomcat: Limited replay attack possible with DIGEST authentication","id":"CVE-2026-65905","kev_date_added":null,"published":"2026-08-25"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Apache Software Foundation"]},"summary":"Attackers can craft URLs to redirect users to arbitrary external sites via the default servlet, potentially facilitating phishing attacks.","url":"https://insights.sbomify.com/CVE-2018-11784/"}