{"action":"Upgrade flask to 3.1.1-1 or later.","affected":[{"fixed":"3.1.1-1","introduced":"0"}],"component":"flask","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["3.1.1-1"],"id":"tcs_01M5NNY6H2AXNRFQ1QTC1SB7GE","modified_at":"2026-09-01T20:03:35.771457198Z","published_at":"2025-05-13T16:15:32.187Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-47278","https://security-tracker.debian.org/tracker/CVE-2025-47278"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-47278#Debian:14/flask","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-47278"}],"summary":"Flask is a web server gateway interface (WSGI) web application framework. In Flask 3.1.0, the way fallback key configuration was handled resulted in the last fallback key being used for signing, rathe"}