{"action":"Upgrade nginx to 1.26.3-2 or later.","affected":[{"fixed":"1.26.3-2","introduced":"0"}],"component":"nginx","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1.26.3-2"],"id":"tcs_01M5NN6M2RWVVGT4D2AJW7CE2V","modified_at":"2026-09-01T20:05:44.625947839Z","published_at":"2025-02-05T18:15:33.347Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-23419","https://security-tracker.debian.org/tracker/CVE-2025-23419"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-23419#Debian:13/nginx","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-23419"}],"summary":"When multiple server blocks are configured to share the same IP address and port, an attacker can use session resumption to bypass client certificate authentication requirements on these servers. This"}