{"action":"Upgrade roundcube to 1.2.3+dfsg.1-1 or later.","affected":[{"fixed":"1.2.3+dfsg.1-1","introduced":"0"}],"component":"roundcube","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1.2.3+dfsg.1-1"],"id":"tcs_01M5NBVP8W47QTAATW9QYWFME5","modified_at":"2026-09-22T07:02:47.495642164Z","published_at":"2016-12-08T18:59:00.200Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2016-9920","https://security-tracker.debian.org/tracker/CVE-2016-9920"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2016-9920#Debian:13/roundcube","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2016-9920"}],"summary":"steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-f"}