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.
CVSS 7.7EPSS 0.395%Risk 0.8
View source- Published
- 2026-03-27 09:16:19
- Affected versions
- unknown
- Type
- Core software
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L