{"action":"Upgrade thunderbird to 1:78.10.0-1 or later.","affected":[{"fixed":"1:78.10.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:78.10.0-1"],"id":"tcs_01M5NFFHZSWPRTX5DB2Z6Q2TWX","modified_at":"2026-10-23T18:03:25.503904173Z","published_at":"2021-06-24T14:15:09.447Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-23998","https://security-tracker.debian.org/tracker/CVE-2021-23998"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-23998#Debian:12/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-23998"}],"summary":"Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Fire"}