CVE-2026-86009

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

No CVSS.

References

Link	Resource
https://github.com/Mailu/Mailu/commit/f05aeb8322e2f61096af6b089d61ba6f40587d96
https://github.com/Mailu/Mailu/issues/2686
https://github.com/Mailu/Mailu/pull/4072
https://github.com/Mailu/Mailu/security/advisories/GHSA-crww-m82r-2wfm
https://github.com/Mailu/Mailu/issues/2686

Configurations

No configuration.

History

21 Oct 2026, 03:17

Type	Values Removed	Values Added
References	~~() https://github.com/Mailu/Mailu/issues/2686 -~~	() https://github.com/Mailu/Mailu/issues/2686 -

16 Oct 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-16 17:17

Updated : 2026-10-21 03:17

NVD link : CVE-2026-86009

Mitre link : CVE-2026-86009

CVE.ORG link : CVE-2026-86009

JSON object : View

Products Affected

No product.

CWE

CWE-285

Improper Authorization

CWE-863

Incorrect Authorization

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