{"action":"Upgrade undertow to 2.3.18-1 or later.","affected":[{"fixed":"2.3.18-1","introduced":"0"}],"component":"undertow","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.3.18-1"],"id":"tcs_01M5NJTEYB7RTB3Q8VWN2JWDGQ","modified_at":"2026-10-23T18:05:27.650471585Z","published_at":"2023-12-12T22:15:22.410Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-5379","https://security-tracker.debian.org/tracker/CVE-2023-5379"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-5379","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-5379"}],"summary":"A flaw was found in Undertow. When an AJP request is sent that exceeds the max-header-size attribute in ajp-listener, JBoss EAP is marked in an error state by mod_cluster in httpd, causing JBoss EAP t"}