PT-2026-28364 · Doveadm+4 · Doveadm+4

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CVE-2026-27856

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Publicado

2026-01-01

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Atualizado

2026-07-07

CVSS v3.1

7.5

Alta

VetorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Doveadm (affected versions not specified)
Description Doveadm credentials are verified using direct comparison, which is susceptible to a timing oracle attack. An attacker could potentially determine the configured credentials, leading to full access to the affected component.
Recommendations Limit access to the doveadm http service port. Install the fixed version dovecot24-2.4.3-1.1.

Exploit

Correção

Improper Authentication

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Enumeração de Fraquezas

Identificadores relacionados

AZL-81704
BDU:2026-10401
CVE-2026-27856
OESA-2026-1849
OPENSUSE-SU-2026:10442-1
OPENSUSE-SU-2026:20554-1
SUSE-SU-2026:1641-1
SUSE-SU-2026:21208-1
USN-8136-1

Produtos afetados

Doveadm
Dovecot
Linuxmint
Red Os
Ubuntu