Main Vulnerability Database Vulnerabilities #VU116926

Improper authorization in Dovecot - CVE-2025-30189

Published: October 13, 2025 / Updated: April 1, 2026

Vulnerability identifier: #VU116926

CSH Severity: Medium

CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-30189

CWE-ID: CWE-285

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to improper authorization checks when handling cached data. A remote user can view emails of other application users.

Dovecot
Fedora
dovecot

Install updates from vendor's website.

Dovecot - update to 2.4.2
dovecot - addressed in versions 2.4.1-6.fc43, 2.4.1-6.fc44, 2.4.1-8.fc43