CVE-2026-24031

HighCVSS 8.2/10Last modified Jul 15, 2026

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.

Metrics

CVSS 3.1 8.2/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

Weakness enumeration

CWE-89

Affected software

No affected versions have been published.

Timeline

Published: Mar 27, 2026
Last modified: Jul 15, 2026
NVD status: Modified

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