CVEvulnerability

CVE-2026-26230

3.8 LOW Published 2026-03-16 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-03-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.8 LOW — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-863

Description

Mattermost versions 10.11.x <= 10.11.10 fail to properly validate permission requirements in the team member roles API endpoint which allows team administrators to demote members to guest role. Mattermost Advisory ID: MMSA-2025-00531

Affected configurations

• mattermost mattermost server (>= 10.11.0 < 10.11.11)

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References