{"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_01M5N98DSQGJSMNJCJ0HTDZYTP","modified_at":"2026-10-23T17:47:43.658809557Z","published_at":"2009-03-04T16:30:00.170Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2009-0801","https://security-tracker.debian.org/tracker/CVE-2009-0801"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2009-0801#Debian:14/squid","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2009-0801"}],"summary":"Squid, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to bypass access controls for Flash, Java, Silverlight,"}