CVE-2026-86008

Mailu is a mail server distributed as a set of Docker images. Prior to 8577c929b4ade04d3cd4210cf036601abd793556, a domain manager targeting an administrative account or another domain manager with greater privileges can reset passwords or obtain tokens for that account. This authorization failure allows a domain manager to take over a higher-privileged account and exercise that account's permissions. This vulnerability is addressed by commit 8577c929b4ade04d3cd4210cf036601abd793556.

CVSS 3.1

7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-25)

CWEs

CWE-269, CWE-285

Published

2026-10-16

Modified

2026-10-16

Record from

the NVD, synced 2026-10-19

References

• https://github.com/Mailu/Mailu/commit/8577c929b4ade04d3cd4210cf036601abd793556
• https://github.com/Mailu/Mailu/issues/2685
• https://github.com/Mailu/Mailu/pull/4050
• https://github.com/Mailu/Mailu/security/advisories/GHSA-9pv5-rm76-3qwj

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