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MEDIUM
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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.
Basic Information
ID
CVE-2026-40874
Source
GitHub_M
Published
Apr 21, 2026 at 19:17
Modified
Apr 21, 2026 at 19:53
Affected Product
Vendor
mailcow
Product
mailcow-dockerized
Version
< 2026-03b
Affected Versions
mailcow mailcow-dockerized < 2026-03b