{"action":"Upgrade tomcat9 to 9.0.43-2 or later.","affected":[{"fixed":"9.0.43-2","introduced":"0"}],"component":"tomcat9","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["9.0.43-2"],"id":"tcs_01M5NFMK19EAMR7PZJVJACPRDN","modified_at":"2026-10-09T09:47:22.199427282Z","published_at":"2021-07-12T15:15:08.367Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-30640","https://security-tracker.debian.org/tracker/CVE-2021-30640"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-30640#Debian:13/tomcat9","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-30640"}],"summary":"A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This"}