CVE-2026-86008

Mailu domain managers can take over higher-privileged accounts

State: Published
Severity: 7.2 High
Published: Oct 16, 2026
Updated: Oct 16, 2026
Reserved: Sep 4, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.2 High	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-285 Improper Authorization
CWE-269 Improper Privilege Management

Affected Products

Product	Versions
MailuMailu	< 8577c929b4ade04d3cd4210cf036601abd793556Affected

References

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