{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"jupyter-server","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":[],"id":"tcs_01M5NRX7R1RYJZKCB4R0W2QCSW","modified_at":"2026-10-01T03:02:39.908197108Z","published_at":"2026-05-05T22:16:00.663Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-40110","https://security-tracker.debian.org/tracker/CVE-2026-40110"],"severity":{"label":"high","score":7.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-40110#Debian:13/jupyter-server","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-40110"}],"summary":"Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, the Origin header validation uses Python's re.match() to check incoming origins against the allow_origin_pat"}