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Vendor Solution
Update Mattermost Plugins to versions 11.6.0, 11.5.2, 10.11.14, 11.4.4 or higher.
Tracking
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No advisories yet.
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
|
Fri, 29 May 2026 19:15:00 +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
|
Mon, 18 May 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 18 May 2026 11:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost
Mattermost mattermost |
|
| Vendors & Products |
Mattermost
Mattermost mattermost |
Mon, 18 May 2026 09:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mattermost Plugins versions <=11.5 11.1.5 10.13.11 11.3.4.0 fail to properly check for permissions when processing commands in the Gitlab plugin which allows normal users to uninstall instances or setup webhook connections via the {{gitlab instance {option}}} or the {{/gitlab webhook {option}}} commands. Mattermost Advisory ID: MMSA-2026-00600 | |
| Title | Instance and webhook GitLab plugin commands were able to be run by non-admin users | |
| Weaknesses | CWE-862 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2026-05-18T14:38:38.896Z
Reserved: 2026-02-24T11:13:17.466Z
Link: CVE-2026-3117
Updated: 2026-05-18T14:38:35.394Z
Status : Analyzed
Published: 2026-05-18T09:16:22.707
Modified: 2026-06-17T10:43:04.453
Link: CVE-2026-3117
No data.
OpenCVE Enrichment
Updated: 2026-05-18T10:48:50Z