{"id":"CVE-2026-114732","published":"2026-10-22T03:16:38.510","lastModified":"2026-10-22T16:45:49.550","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”.","cvssScore":6.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","cwes":["CWE-288"],"vendors":[],"products":[],"references":[{"url":"https://bugs.debian.org/1151279","tags":[]},{"url":"https://github.com/roundcube/roundcubemail/commit/453c413d6851cf603bebdb15e58381f5ef9b8094","tags":[]},{"url":"https://github.com/roundcube/roundcubemail/commit/cb235cbfef88cbf78236dc67d3b667bf3dc61ddd","tags":[]},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.6.20","tags":[]},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.7.5","tags":[]},{"url":"https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5","tags":[]}],"exploitRefs":[{"url":"https://github.com/roundcube/roundcubemail/commit/453c413d6851cf603bebdb15e58381f5ef9b8094","tags":[]},{"url":"https://github.com/roundcube/roundcubemail/commit/cb235cbfef88cbf78236dc67d3b667bf3dc61ddd","tags":[]},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.6.20","tags":[]},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.7.5","tags":[]}],"hasPoc":true,"ai":null}