{"action":"Upgrade org.apache.tomcat.embed:tomcat-embed-core to 7.0.99 (7.x), 8.5.50 (8.x) or 9.0.30 (9.x) or later.","affected":[{"fixed":"7.0.99","introduced":"0"},{"fixed":"8.5.50","introduced":"8.0.0"},{"fixed":"9.0.30","introduced":"9.0.0"}],"component":"org.apache.tomcat.embed:tomcat-embed-core","cve_ids":["CVE-2019-17563"],"ecosystem":"Maven","epss":0.10687,"exploited":false,"fixed_versions":["7.0.99","8.5.50","9.0.30"],"ghsa_id":"GHSA-9xcj-c8cr-8c3c","id":"tcs_01M5N8R1AH4TZZM7WVFC3TT7SH","modified_at":"2026-08-07T08:12:07.231560570Z","published_at":"2019-12-26T18:22:26Z","references":["https://osv.dev/vulnerability/GHSA-9xcj-c8cr-8c3c","https://nvd.nist.gov/vuln/detail/CVE-2019-17563","https://www.oracle.com/security-alerts/cpujul2020.html","https://www.oracle.com/security-alerts/cpujan2021.html","https://www.oracle.com/security-alerts/cpuapr2020.html","https://www.debian.org/security/2020/dsa-4680","https://www.debian.org/security/2019/dsa-4596","https://usn.ubuntu.com/4251-1","https://security.netapp.com/advisory/ntap-20200107-0001","https://security.gentoo.org/glsa/202003-43","https://seclists.org/bugtraq/2019/Dec/43","https://lists.debian.org/debian-lts-announce/2020/05/msg00026.html","https://lists.debian.org/debian-lts-announce/2020/01/msg00024.html","https://lists.apache.org/thread.html/reb9a66f176df29b9a832caa95ebd9ffa3284e8f4922ec4fa3ad8eb2e@%3Cissues.cxf.apache.org%3E","https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a@%3Cdev.tomcat.apache.org%3E","https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c@%3Cdev.tomcat.apache.org%3E","https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9@%3Cdev.tomcat.apache.org%3E","https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0@%3Cdev.tomcat.apache.org%3E","https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d@%3Cdev.tomcat.apache.org%3E","https://lists.apache.org/thread.html/8b4c1db8300117b28a0f3f743c0b9e3f964687a690cdf9662a884bbd%40%3Cannounce.tomcat.apache.org%3E","https://github.com/apache/tomcat","http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00013.html"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-9xcj-c8cr-8c3c","url":"https://osv.dev/vulnerability/GHSA-9xcj-c8cr-8c3c"}],"summary":"In Apache Tomcat, when using FORM authentication there was a narrow window where an attacker could perform a session fixation attack"}