{"action":"Upgrade squid to 4.1-1 or later.","affected":[{"fixed":"4.1-1","introduced":"0"}],"component":"squid","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.1-1"],"id":"tcs_01M5NBKV335AHSWGMQQSN2YWC5","modified_at":"2026-09-22T07:03:07.796126162Z","published_at":"2016-05-10T19:59:01.307Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2016-4554","https://security-tracker.debian.org/tracker/CVE-2016-4554"],"severity":{"label":"high","score":8.6},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2016-4554#Debian:14/squid","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2016-4554"}],"summary":"mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a \"header smu"}