{"action":"Upgrade tomcat11 to 11.0.21-1 or later.","affected":[{"fixed":"11.0.21-1","introduced":"0"}],"component":"tomcat11","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["11.0.21-1"],"id":"tcs_01M5NRSDS6C9YH50FH2MTQ06XS","modified_at":"2026-10-27T09:47:31.117897821Z","published_at":"2026-04-09T20:16:24.937Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-34483","https://security-tracker.debian.org/tracker/CVE-2026-34483"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-34483#Debian:14/tomcat11","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-34483"}],"summary":"Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10."}