{"action":"Upgrade thunderbird to 78.9.0-r0 or later.","affected":[{"fixed":"78.9.0-r0","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.17","exploited":false,"fixed_versions":["78.9.0-r0"],"id":"tcs_01M6GV1MM6WM3EMF0JDS3F5Z2V","modified_at":"2026-11-03T06:32:38.366720079Z","published_at":"2021-03-31T14:15:19.170Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-23984","https://security.alpinelinux.org/vuln/CVE-2021-23984"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-23984#Alpine:v3.17/thunderbird","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-23984"}],"summary":"A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could hav"}