{"id":"CLEANSTART-2024-BR87657","summary":"By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays","details":"Security vulnerability affects the thunderbird package. By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays.","modified":"2026-10-31T15:46:11.654172457Z","published":"2026-10-31T14:18:58.134431Z","upstream":["CVE-2020-12397"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2024/CLEANSTART-2024-BR87657.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2020-12397"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12397"}],"affected":[{"package":{"name":"thunderbird","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/thunderbird"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"68.8.0-r0"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-BR87657.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"}]}