{"answers":{"affected":"6 open source packages ship an affected version, including org.apache.tomcat.embed:tomcat-embed-core. It affects 11 products.","exploited":"There is no known exploitation of CVE-2019-17563 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: 7.0.99, 8.5.50 or 9.0.30.","what":"CVE-2019-17563 is a high-severity authentication bypass vulnerability in Apache Tomcat, published on 23 Dec 2019. 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-2019-17563 and fix it if it is affected.\n\nWhat it is: CVE-2019-17563 is a high-severity authentication bypass vulnerability in Apache Tomcat, published on 23 Dec 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2019-17563 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected all versions; fixed in 7.0.99\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected all versions; fixed in 7.0.99\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 8.0.0; fixed in 8.5.50\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 8.0.0; fixed in 8.5.50\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 9.0.0; fixed in 9.0.30\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 9.0.0; fixed in 9.0.30\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-2019-17563/ (Markdown: https://insights.sbomify.com/CVE-2019-17563/index.md)","id":"CVE-2019-17563","markdown":"https://insights.sbomify.com/CVE-2019-17563/index.md","name":"CVE-2019-17563","record":{"aliases":["DEBIAN-CVE-2019-17563","GHSA-9xcj-c8cr-8c3c","UBUNTU-CVE-2019-17563"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":true,"product_category":"Apache Tomcat","requires_auth":"none","summary":"An attacker could perform a session fixation attack in Apache Tomcat when using FORM authentication, potentially leading to account takeover.","user_interaction":"required","vuln_class":"auth_bypass"},"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":"leap","vendor":"opensuse"},{"product":"agile_engineering_data_management","vendor":"oracle"},{"product":"hyperion_infrastructure_technology","vendor":"oracle"},{"product":"instantis_enterprisetrack","vendor":"oracle"},{"product":"micros_relate_crm_software","vendor":"oracle"},{"product":"mysql_enterprise_monitor","vendor":"oracle"},{"product":"retail_order_broker","vendor":"oracle"},{"product":"transportation_management","vendor":"oracle"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-384","name":"Session Fixation"}],"description":"When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has been treated as a security vulnerability.","ecosystems":["Maven"],"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":"In Apache Tomcat, when using FORM authentication there was a narrow window where an attacker could perform a session fixation attack","id":"CVE-2019-17563","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"apache:tomcat","products":["apache:tomcat","canonical:ubuntu_linux","debian:debian_linux","opensuse:leap","oracle:hyperion_infrastructure_technology","oracle:instantis_enterprisetrack","oracle:mysql_enterprise_monitor"],"type":"auth_bypass","year":"2019"},"n_packages":6,"n_references":19,"next":{"headline":"Deserialization of Untrusted Data in Apache Dubbo","id":"CVE-2019-17564"},"packages":[{"ecosystem":"Maven","fixed":["7.0.99"],"introduced":["0"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":null,"source":"GHSA-9xcj-c8cr-8c3c"},{"ecosystem":"Maven","fixed":["7.0.99"],"introduced":["0"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","source":"GHSA-9xcj-c8cr-8c3c"},{"ecosystem":"Maven","fixed":["8.5.50"],"introduced":["8.0.0"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":null,"source":"GHSA-9xcj-c8cr-8c3c"},{"ecosystem":"Maven","fixed":["8.5.50"],"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-9xcj-c8cr-8c3c"},{"ecosystem":"Maven","fixed":["9.0.30"],"introduced":["9.0.0"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":null,"source":"GHSA-9xcj-c8cr-8c3c"},{"ecosystem":"Maven","fixed":["9.0.30"],"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-9xcj-c8cr-8c3c"}],"prev":{"headline":"Command injection in Apache CloudStack","id":"CVE-2019-17562"},"products":["Apache Tomcat"],"published":"2019-12-23","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":"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["Apache Software Foundation"]},"summary":"An attacker could perform a session fixation attack in Apache Tomcat when using FORM authentication, potentially leading to account takeover.","url":"https://insights.sbomify.com/CVE-2019-17563/"}