Description
Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events
Published: 2025-11-14
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

Vendor Solution

Update Mattermost to versions 11.0.0 or higher.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-xpg8-8xpv-948p Mattermost does not enforce MFA on WebSocket connections
References
History

Mon, 17 Nov 2025 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Mattermost mattermost Server
CPEs cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Vendors & Products Mattermost mattermost Server

Sat, 15 Nov 2025 21:30:00 +0000

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

Fri, 14 Nov 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Fri, 14 Nov 2025 08:15:00 +0000

Type Values Removed Values Added
Description Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events
Title Lack of MFA enforcement in WebSocket connections
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


Subscriptions

Mattermost Mattermost Mattermost Server
cve-icon MITRE

Status: PUBLISHED

Assigner: Mattermost

Published:

Updated: 2025-11-14T15:47:52.338Z

Reserved: 2025-10-15T11:42:23.807Z

Link: CVE-2025-55070

cve-icon Vulnrichment

Updated: 2025-11-14T15:47:46.734Z

cve-icon NVD

Status : Analyzed

Published: 2025-11-14T08:15:45.500

Modified: 2025-11-17T17:51:05.737

Link: CVE-2025-55070

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-11-15T21:25:35Z

Weaknesses