{"action":"Upgrade thunderbird to 1:68.8.0-1 or later.","affected":[{"fixed":"1:68.8.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:68.8.0-1"],"id":"tcs_01M5NEHCQM8V6FY9JTPYY2ZDD6","modified_at":"2026-10-26T12:00:28.175498149Z","published_at":"2020-05-22T19:15:15.580Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-12397","https://security-tracker.debian.org/tracker/CVE-2020-12397"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-12397#Debian:14/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-12397"}],"summary":"By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays. This vulnerability affects Thunderbird < 68.8.0."}