{"action":"Upgrade tomcat9 to 9.0.31-1 or later.","affected":[{"fixed":"9.0.31-1","introduced":"0"}],"component":"tomcat9","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["9.0.31-1"],"id":"tcs_01M5NE0SQ8FQGPD5VM18RZW8JT","modified_at":"2026-10-09T09:47:24.942612966Z","published_at":"2019-12-23T17:15:11.803Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-17563","https://security-tracker.debian.org/tracker/CVE-2019-17563"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-17563#Debian:13/tomcat9","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-17563"}],"summary":"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 windo"}