{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"python-tornado","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":[],"id":"tcs_01M5NSP0VRY2C2EVRVGQ7MN64T","modified_at":"2026-10-01T03:03:16.396910198Z","published_at":"2026-07-14T21:17:02.300Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-49854","https://security-tracker.debian.org/tracker/CVE-2026-49854"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-49854","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-49854"}],"summary":"Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, the optional native extension tornado.speedups implemented websocket_mask without validating that the mask argume"}