---
id: CVE-2026-93846
title: >-
  Team admin can escalate a team member's permissions via the team member roles
  endpoint
summary: >-
  Mattermost versions 11.7.x <= 11.7.10 fail to restrict which built-in roles
  can be assigned to a team member via the API, which allows a team admin to
  grant a team member permissions beyond those permitted by the configured
  permission sc…
severity: low
cvss: 3.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-863
vendor: Mattermost
product: Mattermost
affected:
  - Mattermost >= 11.7.0 <= 11.7.10
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T15:58:14.443Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-93846'
references:
  - url: 'https://mattermost.com/security-updates'
    label: MMSA-2026-00734
tags:
  - cve.org
ingestedAt: '2026-10-26T16:31:40.063Z'
---

## Overview

Mattermost versions 11.7.x <= 11.7.10 fail to restrict which built-in roles can be assigned to a team member via the API, which allows a team admin to grant a team member permissions beyond those permitted by the configured permission scheme via the {{update-team-member-roles}} REST API.. Mattermost Advisory ID: MMSA-2026-00734

## Affected

- `Mattermost >= 11.7.0 <= 11.7.10`

## Remediation

Update Mattermost to versions 11.11.0, 11.7.11 or higher.