{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"flask","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":[],"id":"tcs_01M5NR5MRCS3MXRQ3B1VVKFV42","modified_at":"2026-10-01T03:03:01.734591296Z","published_at":"2026-02-21T06:17:00.910Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-27205","https://security-tracker.debian.org/tracker/CVE-2026-27205"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-27205","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-27205"}],"summary":"Flask is a web server gateway interface (WSGI) web application framework. In versions 3.1.2 and below, when the session object is accessed, Flask should set the Vary: Cookie header., resulting in a Us"}