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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 IMAP host”.
8.1 HIGHEPSS 0.38%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.1 | HIGH | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| 6.8 | MEDIUM | 3.1mitre (CNA) | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
Details
- CVE ID
- CVE-2026-114732
- Status
- Analyzed
- Assigner (CNA)
- mitre
- Published
- Oct 22, 2026
- Last modified
- 2026-11-04 01:41 UTC
- Weaknesses
- CWE-288 · Authentication Bypass Using an Alternate Path or Channel
Affected Products
As published by the CNA in the CVE record.
RoundcubeWebmail2 version ranges
- 1.6.0 before 1.6.20
- 1.7.0 before 1.7.5
References
- bugs.debian.org https://bugs.debian.org/1151279
- github.com https://github.com/roundcube/roundcubemail/commit/453c413d6851cf603bebdb15e58381f5ef9b8094
- github.com https://github.com/roundcube/roundcubemail/commit/cb235cbfef88cbf78236dc67d3b667bf3dc61ddd
- github.com https://github.com/roundcube/roundcubemail/releases/tag/1.6.20
- github.com https://github.com/roundcube/roundcubemail/releases/tag/1.7.5
- roundcube.net https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5