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Vendor Solution
Update Mattermost to versions 11.9.0, 11.7.7, 10.11.22, 11.8.4 or higher.
Tracking
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No advisories yet.
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
|
Tue, 18 Aug 2026 16:30:00 +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
|
|
| Metrics |
ssvc
|
Mon, 17 Aug 2026 23:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost
Mattermost mattermost |
|
| Vendors & Products |
Mattermost
Mattermost mattermost |
Mon, 17 Aug 2026 22:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21, 11.8.x <= 11.8.3 fails to validate WebSocket command field types which allows an authenticated user to crash the plugin process and deny service to all Boards users via a custom_focalboard_SUBSCRIBE_TEAM message with a non-string teamId.. Mattermost Advisory ID: MMSA-2026-00687 | |
| Title | Boards plugin panics on WebSocket command with non-string field types | |
| Weaknesses | CWE-704 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2026-08-18T15:23:40.295Z
Reserved: 2026-05-29T10:40:50.902Z
Link: CVE-2026-10080
Updated: 2026-08-18T15:23:36.909Z
Status : Analyzed
Published: 2026-08-17T22:16:58.607
Modified: 2026-08-18T16:19:17.763
Link: CVE-2026-10080
No data.
OpenCVE Enrichment
Updated: 2026-08-18T01:00:05Z