CVE-2026-114732
Fixed in a distro release EPSS <1%CVSS 6.8
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”.
Products: roundcube webmail
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | roundcube | no fix |
| Debian 13 | roundcube | 1.6.20+dfsg-0+deb13u1 |
| Debian 14 | roundcube | 1.6.20+dfsg-1 |
| Ubuntu 26.10 | roundcube | no fix |
| Ubuntu Pro 16.04 LTS | roundcube | no fix |
| Ubuntu Pro 18.04 LTS | roundcube | no fix |
| Ubuntu Pro 20.04 LTS | roundcube | no fix |
| Ubuntu Pro 22.04 LTS | roundcube | no fix |
| Ubuntu Pro 24.04 LTS | roundcube | no fix |
| Ubuntu Pro 26.04 LTS | roundcube | no fix |