{"action":"Upgrade ruby-rack-cors to 1.1.1-1 or later.","affected":[{"fixed":"1.1.1-1","introduced":"0"}],"component":"ruby-rack-cors","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.1.1-1"],"id":"tcs_01M5NE1XR3MFZNBVTMDYFPHQKX","modified_at":"2026-09-21T07:02:33.876562313Z","published_at":"2019-11-14T21:15:12.170Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-18978","https://security-tracker.debian.org/tracker/CVE-2019-18978"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-18978#Debian:14/ruby-rack-cors","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-18978"}],"summary":"An issue was discovered in the rack-cors (aka Rack CORS Middleware) gem before 1.0.4 for Ruby. It allows ../ directory traversal to access private resources because resource matching does not ensure t"}