Security Advisory

CVE-2026-40874

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-04-21 19:17:45

Last updated 2026-04-21 19:53:36

Assigner GitHub_M

State PUBLISHED

Description

mailcow: dockerized is an open source groupware/email suite based on docker. In versions prior to 2026-03b, no administrator verification takes place when deleting Forwarding Hosts with `/api/v1/delete/fwdhost`. Any authenticated user can call this API. Checks are only applied for edit/add actions, but deletion can still significantly disrupt the mail service. Version 2026-03b fixes the vulnerability.

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