{"action":"Upgrade rails to 2:6.0.3.5+dfsg-1 or later.","affected":[{"fixed":"2:6.0.3.5+dfsg-1","introduced":"0"}],"component":"rails","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2:6.0.3.5+dfsg-1"],"id":"tcs_01M5NFE8K53540345EDWXEDJJS","modified_at":"2026-10-23T18:03:11.884973869Z","published_at":"2021-02-11T18:15:17.460Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-22881","https://security-tracker.debian.org/tracker/CVE-2021-22881"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-22881","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-22881"}],"summary":"The Host Authorization middleware in Action Pack before 6.1.2.1, 6.0.3.5 suffers from an open redirect vulnerability. Specially crafted `Host` headers in combination with certain \"allowed host\" format"}