Mattermost versions 10.11.x <= 10.11.9 fail to enforce invite permissions when updating team settings, which allows team administrators without proper permissions to bypass restrictions and add users to their team via API requests. Mattermost Advisory ID: MMSA-2025-00561

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Fixes

Solution

Update Mattermost to versions 11.3.0, 10.11.10 or higher.


Workaround

No workaround given by the vendor.

References
History

Tue, 17 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 17 Feb 2026 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Mattermost
Mattermost mattermost
Vendors & Products Mattermost
Mattermost mattermost

Mon, 16 Feb 2026 12:30:00 +0000

Type Values Removed Values Added
Description Mattermost versions 10.11.x <= 10.11.9 fail to enforce invite permissions when updating team settings, which allows team administrators without proper permissions to bypass restrictions and add users to their team via API requests. Mattermost Advisory ID: MMSA-2025-00561
Title Team Admin Bypass of Invite Permissions via allow_open_invite Field
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 3.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Mattermost

Published:

Updated: 2026-02-17T17:05:49.640Z

Reserved: 2025-12-12T11:53:22.972Z

Link: CVE-2025-14573

cve-icon Vulnrichment

Updated: 2026-02-17T16:42:11.621Z

cve-icon NVD

Status : Received

Published: 2026-02-16T13:16:00.623

Modified: 2026-02-16T13:16:00.623

Link: CVE-2025-14573

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-17T08:49:44Z

Weaknesses