Vulnerability Description
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”.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://bugs.debian.org/1151279
- https://github.com/roundcube/roundcubemail/commit/453c413d6851cf603bebdb15e58381
- https://github.com/roundcube/roundcubemail/commit/cb235cbfef88cbf78236dc67d3b667
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5
- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5
FAQ
What is CVE-2026-114732?
CVE-2026-114732 is a vulnerability with a CVSS score of 6.8 (MEDIUM). 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...
How severe is CVE-2026-114732?
CVE-2026-114732 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-114732?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.