---
id: CVE-2026-86008
title: Mailu domain managers can take over higher-privileged accounts
summary: >-
  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 o…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-285
  - CWE-269
vendor: Mailu
product: Mailu
affected:
  - Mailu < 8577c929b4ade04d3cd4210cf036601abd793556
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T16:53:48.473995Z'
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T16:53:59.579Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-86008'
references:
  - url: 'https://github.com/Mailu/Mailu/security/advisories/GHSA-9pv5-rm76-3qwj'
    label: 'https://github.com/Mailu/Mailu/security/advisories/GHSA-9pv5-rm76-3qwj'
  - url: 'https://github.com/Mailu/Mailu/issues/2685'
    label: 'https://github.com/Mailu/Mailu/issues/2685'
  - url: 'https://github.com/Mailu/Mailu/pull/4050'
    label: 'https://github.com/Mailu/Mailu/pull/4050'
  - url: >-
      https://github.com/Mailu/Mailu/commit/8577c929b4ade04d3cd4210cf036601abd793556
    label: >-
      https://github.com/Mailu/Mailu/commit/8577c929b4ade04d3cd4210cf036601abd793556
tags:
  - cve.org
ingestedAt: '2026-10-16T17:24:46.896Z'
epss: 0.00314
epssPercentile: 0.22728
---

## Overview

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.

## Affected

- `Mailu < 8577c929b4ade04d3cd4210cf036601abd793556`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.