{"action":"Upgrade jruby to 9.3.9.0+ds-1 or later.","affected":[{"fixed":"9.3.9.0+ds-1","introduced":"0"}],"component":"jruby","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["9.3.9.0+ds-1"],"id":"tcs_01M5NDZ94K2JYAZGA0YRKVD0N0","modified_at":"2026-09-21T07:01:41.970716569Z","published_at":"2019-11-26T18:15:15.210Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-16254","https://security-tracker.debian.org/tracker/CVE-2019-16254"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-16254#Debian:14/jruby","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-16254"}],"summary":"Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows HTTP Response Splitting. If a program using WEBrick inserts untrusted input into the response header, an attacker can exploit it"}