Description
Mattermost versions <11.0 fail to properly enforce the "Allow users to view archived channels" setting which allows regular users to access archived channel content and files via the "Open in Channel" functionality from followed threads
Published: 2025-11-14
Score: 3.1 Low
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-x3hx-ch7p-8xgg Mattermost allows regular users to access archived channel content and files
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 <11.0 fail to properly enforce the "Allow users to view archived channels" setting which allows regular users to access archived channel content and files via the "Open in Channel" functionality from followed threads
Title Unauthorized access to archived channel content via threads interface
Weaknesses CWE-863
References
Metrics cvssV3_1

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


Subscriptions

Mattermost Mattermost Mattermost Server
cve-icon MITRE

Status: PUBLISHED

Assigner: Mattermost

Published:

Updated: 2025-11-14T15:48:31.081Z

Reserved: 2025-10-15T11:16:32.223Z

Link: CVE-2025-41436

cve-icon Vulnrichment

Updated: 2025-11-14T15:48:26.432Z

cve-icon NVD

Status : Analyzed

Published: 2025-11-14T08:15:45.310

Modified: 2025-11-17T17:52:01.540

Link: CVE-2025-41436

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses