{"action":"Upgrade tomcat9 to 9.0.70-2 or later.","affected":[{"fixed":"9.0.70-2","introduced":"0"}],"component":"tomcat9","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["9.0.70-2"],"id":"tcs_01M5NVD86M5PDCCDMZKT9AEYF7","modified_at":"2026-10-01T08:47:30.169407331Z","published_at":"2026-09-23T12:17:06.537Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-76183","https://security-tracker.debian.org/tracker/CVE-2026-76183"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-76183#Debian:13/tomcat9","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-76183"}],"summary":"Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 thro"}