{"action":"Upgrade node-undici to 8.12.2+dfsg+~cs3.2.3-1 or later.","affected":[{"fixed":"8.12.2+dfsg+~cs3.2.3-1","introduced":"0"}],"component":"node-undici","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["8.12.2+dfsg+~cs3.2.3-1"],"id":"tcs_01M5NPYNNXFGQT1YT3HGFEN5W1","modified_at":"2026-11-01T05:00:06.054409287Z","published_at":"2026-10-15T09:17:16.573Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-109855","https://security-tracker.debian.org/tracker/CVE-2026-109855"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-109855","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-109855"}],"summary":"undici is an HTTP client library for Node.js. In versions 8.11.0 and 8.11.1, its experimental WebSocket client, which is enabled by default when HTTP/2 is allowed, mishandles a failed WebSocket handsh"}