VULNERABILITY INTELLIGENCE
CVE-2026-40874
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-04-21
Last modified2026-10-26
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.
Weakness classification
- security-advisories@github.com: CWE-284