7.7
High
CVE-2026-24031 Dovecot SQL based authentication can be bypassed when auth_username_chars is cleared by admin
Description
Dovecot SQL based authentication can be bypassed when auth_username_chars is cleared by admin. This vulnerability allows bypassing authentication for any user and user enumeration. Do not clear auth_username_chars. If this is not possible, install latest fixed version. No publicly available exploits are known.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| OX Dovecot Pro 3.1 | earliest → 3.1.0 | No fix stated |
| OX Dovecot Pro 2.4 | earliest → 2.4.0 | No fix stated |
| Red Hat Enterprise Linux 6 | Versions not published | |
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 7 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published |
References
- documentation.open-xchange.com documentation.open-xchange.com
Timeline
- Published
- Last modified
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