{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"fail2ban","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":[],"id":"tcs_01M5NPYF8B0Z9GJHAKHM5NA2VF","modified_at":"2026-10-23T17:47:35.049161922Z","published_at":"2026-10-13T03:16:40.943Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-109786","https://security-tracker.debian.org/tracker/CVE-2026-109786"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-109786#Debian:13/fail2ban","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-109786"}],"summary":"In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter (config/filter.d/sshd.conf) accepts an \"on <token>\" suffix after the host address. Because OpenSSH logs the offered username verbatim,"}