{"action":"Upgrade puma to 4.3.6-1 or later.","affected":[{"fixed":"4.3.6-1","introduced":"0"}],"component":"puma","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.3.6-1"],"id":"tcs_01M5NEG0WWCRY71ZE8ASF0FRDW","modified_at":"2026-10-26T12:01:19.960504354Z","published_at":"2020-05-22T15:15:11.507Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-11077","https://security-tracker.debian.org/tracker/CVE-2020-11077"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-11077#Debian:14/puma","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-11077"}],"summary":"In Puma (RubyGem) before 4.3.5 and 3.12.6, a client could smuggle a request through a proxy, causing the proxy to send a response back to another unknown client. If the proxy uses persistent connectio"}