CVE-2026-114732 | Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations. When a user logs in with an alias address, rcube_user::query() matched the address against identity records without qualifying the lookup by IMAP host, so a login could be resolved to a user account belonging to a different IMAP host. Upstream fixed this in the commit “Fix bug where an alias login wasn’t qualified by IMA
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations. When a user logs in with an alias address, rcube_user::query() matched the address against identity records without qualifying the lookup by IMAP host, so a login could be resolved to a user account belonging to a different IMAP host. Upstream fixed this in the commit “Fix bug where an alias login wasn’t qualified by IMAP host”.
- 🔗 bugs.debian.org/1151279
- 🔗 github.com/roundcube/roundcubemail/commit/453c413d68…
- 🔗 roundcube.net/news/2026/10/19/security-updates-1.6.20-a…
- 🔗 github.com/roundcube/roundcubemail/releases/tag/1.7.…
- 🔗 github.com/roundcube/roundcubemail/releases/tag/1.6.…
- 🔗 github.com/roundcube/roundcubemail/commit/cb235cbfef…
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