{"action":"Upgrade nagios4 to 4.4.6-4.1+deb13u1 or later.","affected":[{"fixed":"4.4.6-4.1+deb13u1","introduced":"0"}],"component":"nagios4","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["4.4.6-4.1+deb13u1"],"id":"tcs_01M5NSKT9WB6AM6E77YSFXT30G","modified_at":"2026-10-14T06:00:20.426039676Z","published_at":"2026-08-26T16:16:26.790Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-48548","https://security-tracker.debian.org/tracker/CVE-2026-48548"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-48548#Debian:13/nagios4","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-48548"}],"summary":"Nagios Core before 4.5.12 contains a cross-site request forgery vulnerability in cmd.cgi where the CSRF protection mechanism passes validation when the NagFormId cookie is absent. Attackers can craft"}