CVE-2026-86009
CVE-2026-86009 · Mailu: Domain managers can allow themselves to spoof on other hosted domains they should not control
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Mailu is a mail server distributed as a set of Docker images. Prior to f05aeb8322e2f61096af6b089d61ba6f40587d96, domain managers can enable spoofing for hosted domains they do not control. A potentially malicious domain administrator enables spoofing for another hosted domain and can send emails that are authenticated with DKIM/SPF for domains they should not be able to. This vulnerability is addressed by f05aeb8322e2f61096af6b089d61ba6f40587d96.
CVSS 8.2 · High · EPSS 0.3%
- Published
- Updated
Affected products and versions
mailu
- Versions
- < f05aeb8322e2f61096af6b089d61ba6f40587d96: Affected
No fix published