PT-2026-83068 · Dovecot · Dovecot

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CVE-2026-42392

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Published

2026-08-28

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Updated

2026-09-01

CVSS v3.1

4.3

Medium

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Name of the Vulnerable Software and Affected Versions dovecot versions prior to 2.4.5-1.1
Description An attacker with valid credentials can send an invalid IMAP URLFETCH command, causing the system to include uninitialized memory in the error response returned to the client. This can lead to the disclosure of process memory contents, which may contain sensitive data.
Recommendations Update to version 2.4.5-1.1. Disable the IMAP URLAUTH functionality.

Fix

Information Disclosure

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Weakness Enumeration

Related Identifiers

AZL-98277
CVE-2026-42392
OPENSUSE-SU-2026:11629-1
OPENSUSE-SU-2026:21720-1

Affected Products

Dovecot