{"action":"Upgrade ruby-rack to 2.2.22-0+deb12u2 or later.","affected":[{"fixed":"2.2.22-0+deb12u2","introduced":"0"}],"component":"ruby-rack","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2.2.22-0+deb12u2"],"id":"tcs_01M5NRSQZJJCM7PCZP0HBQS0ZM","modified_at":"2026-10-01T03:03:03.960451524Z","published_at":"2026-04-02T17:16:25.030Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-34786","https://security-tracker.debian.org/tracker/CVE-2026-34786"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-34786","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-34786"}],"summary":"Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Static#applicable_rules evaluates several header_rules types against the raw URL-encoded PATH_INFO, whil"}