{"action":"Upgrade kamailio to 5.4.0-1 or later.","affected":[{"fixed":"5.4.0-1","introduced":"0"}],"component":"kamailio","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["5.4.0-1"],"id":"tcs_01M5NEZP3CB1BQ95Z7JK21H24X","modified_at":"2026-10-26T12:00:26.450326395Z","published_at":"2020-11-18T14:15:12.017Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-28361","https://security-tracker.debian.org/tracker/CVE-2020-28361"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-28361#Debian:14/kamailio","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-28361"}],"summary":"Kamailio before 5.4.0, as used in Sip Express Router (SER) in Sippy Softswitch 4.5 through 5.2 and other products, allows a bypass of a header-removal protection mechanism via whitespace characters. T"}