{"action":"Upgrade undertow to 1.4.18-1 or later.","affected":[{"fixed":"1.4.18-1","introduced":"0"}],"component":"undertow","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.4.18-1"],"id":"tcs_01M5NCD0X83SD010CQEBXQE688","modified_at":"2026-09-01T20:02:53.192374057Z","published_at":"2018-07-27T14:29:00.207Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2017-2666","https://security-tracker.debian.org/tracker/CVE-2017-2666"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2017-2666","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2017-2666"}],"summary":"It was discovered in Undertow that the code that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid charact"}