{"answers":{"affected":"8 open source packages ship an affected version, including org.apache.tomcat.embed:tomcat-embed-core and org.apache.tomcat:tomcat-coyote. It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-0199 in the wild and no public exploit code.","fix":"Upgrade org.apache.tomcat.embed:tomcat-embed-core to a fixed version for your release line: 8.5.38 or 9.0.16.","what":"CVE-2019-0199 is a high-severity denial of service vulnerability in Apache Tomcat, published on 10 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-0199 and fix it if it is affected.\n\nWhat it is: CVE-2019-0199 is a high-severity denial of service vulnerability in Apache Tomcat, published on 10 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2019-0199 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 8.0.0; fixed in 8.5.38\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 8.0.0; fixed in 8.5.38\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 9.0.0; fixed in 9.0.16\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 9.0.0; fixed in 9.0.16\n- org.apache.tomcat:tomcat-coyote (Maven): affected from 8.0.0; fixed in 8.5.38\n- org.apache.tomcat:tomcat-coyote (Maven): affected from 8.0.0; fixed in 8.5.38\n- org.apache.tomcat:tomcat-coyote (Maven): affected from 9.0.0; fixed in 9.0.16\n- org.apache.tomcat:tomcat-coyote (Maven): affected from 9.0.0; fixed in 9.0.16\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-2019-0199/ (Markdown: https://insights.sbomify.com/CVE-2019-0199/index.md)","id":"CVE-2019-0199","markdown":"https://insights.sbomify.com/CVE-2019-0199/index.md","name":"CVE-2019-0199","record":{"aliases":["DEBIAN-CVE-2019-0199","GHSA-qcxh-w3j9-58qr","SUSE-SU-2019:1825-1","UBUNTU-CVE-2019-0199","openSUSE-SU-2019:1723-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache Tomcat","requires_auth":"none","summary":"Attackers can cause thread exhaustion and denial of service in Apache Tomcat by sending excessive HTTP/2 SETTINGS frames and keeping streams open.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"tomcat","vendor":"apache"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.14 and 8.5.0 to 8.5.37 accepted streams with excessive numbers of SETTINGS frames and also permitted clients to keep streams open without reading/writing request/response data. By keeping streams open for requests that utilised the Servlet API's blocking I/O, clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.","ecosystems":["Maven","SUSE:Linux Enterprise Module for Web and Scripting 15","openSUSE:Leap 15.0"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Apache Tomcat Denial of Service vulnerability","id":"CVE-2019-0199","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"apache:tomcat","products":["apache:tomcat"],"type":"denial_of_service","year":"2019"},"n_packages":10,"n_references":35,"next":{"headline":"Improper Input Validation in Apache Qpid Broker-J","id":"CVE-2019-0200"},"packages":[{"ecosystem":"Maven","fixed":["8.5.38"],"introduced":["8.0.0"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":null,"source":"GHSA-qcxh-w3j9-58qr"},{"ecosystem":"Maven","fixed":["8.5.38"],"introduced":["8.0.0"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","source":"GHSA-qcxh-w3j9-58qr"},{"ecosystem":"Maven","fixed":["9.0.16"],"introduced":["9.0.0"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":null,"source":"GHSA-qcxh-w3j9-58qr"},{"ecosystem":"Maven","fixed":["9.0.16"],"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-qcxh-w3j9-58qr"},{"ecosystem":"Maven","fixed":["8.5.38"],"introduced":["8.0.0"],"last_affected":[],"package":"org.apache.tomcat:tomcat-coyote","purl":null,"source":"GHSA-qcxh-w3j9-58qr"},{"ecosystem":"Maven","fixed":["8.5.38"],"introduced":["8.0.0"],"last_affected":[],"package":"org.apache.tomcat:tomcat-coyote","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote","source":"GHSA-qcxh-w3j9-58qr"},{"ecosystem":"Maven","fixed":["9.0.16"],"introduced":["9.0.0"],"last_affected":[],"package":"org.apache.tomcat:tomcat-coyote","purl":null,"source":"GHSA-qcxh-w3j9-58qr"},{"ecosystem":"Maven","fixed":["9.0.16"],"introduced":["9.0.0"],"last_affected":[],"package":"org.apache.tomcat:tomcat-coyote","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote","source":"GHSA-qcxh-w3j9-58qr"},{"ecosystem":"SUSE:Linux Enterprise Module for Web and Scripting 15","fixed":["9.0.21-3.27.1"],"introduced":["0"],"last_affected":[],"package":"tomcat","purl":"pkg:rpm/suse/tomcat\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015","source":"SUSE-SU-2019:1825-1"},{"ecosystem":"openSUSE:Leap 15.0","fixed":["9.0.21-lp150.2.22.1"],"introduced":["0"],"last_affected":[],"package":"tomcat","purl":"pkg:rpm/opensuse/tomcat\u0026distro=openSUSE%20Leap%2015.0","source":"openSUSE-SU-2019:1723-1"}],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2019-0198"},"products":["Apache Tomcat"],"published":"2019-04-10","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":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can cause thread exhaustion and denial of service in Apache Tomcat by sending excessive HTTP/2 SETTINGS frames and keeping streams open.","url":"https://insights.sbomify.com/CVE-2019-0199/"}