{"action":"Upgrade ruby-rack to 2.2.6.4-1 or later.","affected":[{"fixed":"2.2.6.4-1","introduced":"0"}],"component":"ruby-rack","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2.2.6.4-1"],"id":"tcs_01M5NHZDG3APNRPA2Z137PAZMW","modified_at":"2026-10-26T18:00:35.562668067Z","published_at":"2025-01-09T01:15:07.483Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-27539","https://security-tracker.debian.org/tracker/CVE-2023-27539"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-27539","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-27539"}],"summary":"There is a denial of service vulnerability in the header parsing component of Rack."}