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CVE-2026-62644
In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the password plugin of the Roundcube Webmail was subject to username spoofing via session data, which could lead to account takeover.
9.8 CRITICALEPSS 0.25%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.8 | CRITICAL | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 6.4 | MEDIUM | 3.1mitre (CNA) | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N |
Details
- CVE ID
- CVE-2026-62644
- Status
- Analyzed
- Assigner (CNA)
- mitre
- Published
- Jul 14, 2026
- Last modified
- 2026-10-24 21:10 UTC
- Weaknesses
- CWE-290 · Authentication Bypass by Spoofing
Affected Products
As published by the CNA in the CVE record.
RoundcubeWebmail2 version ranges
- 1.6.0 before 1.6.17
- 1.7.0 before 1.7.2
References
- github.com https://github.com/roundcube/roundcubemail/commit/5cdc6a48b40beabff7f0bf5d9035f4491e877e4c
- github.com https://github.com/roundcube/roundcubemail/commit/7414fef51cd2407d39faab99680763f10ed5231d
- github.com https://github.com/roundcube/roundcubemail/commit/83150ce04d689a70f92d511bcae40adba8d55476
- github.com https://github.com/roundcube/roundcubemail/commit/9a96c20d8c7c9135876b68bebd6960af3ee60923
- github.com https://github.com/roundcube/roundcubemail/releases/tag/1.6.17
- github.com https://github.com/roundcube/roundcubemail/releases/tag/1.7.2
- roundcube.net https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2