{"action":"Upgrade waitress to 1.4.1-1 or later.","affected":[{"fixed":"1.4.1-1","introduced":"0"}],"component":"waitress","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.4.1-1"],"id":"tcs_01M5NDZQKRWR218VTSWFPPQ2T8","modified_at":"2026-09-21T07:02:49.594720152Z","published_at":"2019-12-26T17:15:13.707Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-16789","https://security-tracker.debian.org/tracker/CVE-2019-16789"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-16789#Debian:14/waitress","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-16789"}],"summary":"In Waitress through version 1.4.0, if a proxy server is used in front of waitress, an invalid request may be sent by an attacker that bypasses the front-end and is parsed differently by waitress leadi"}