No advisories yet.
Solution
Update Mattermost to versions 11.4.0, 11.3.1, 11.2.3, 10.11.11 or higher.
Workaround
No workaround given by the vendor.
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
|
Tue, 17 Mar 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 17 Mar 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost
Mattermost mattermost |
|
| Vendors & Products |
Mattermost
Mattermost mattermost |
Mon, 16 Mar 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to handle incorrectly reported array lengths which allows malicious user to cause OOM errors and crash the server via sending corrupted msgpack frames within websocket messages to calls plugin. Mattermost Advisory ID: MMSA-2025-00537 | |
| Title | DoS in Calls plugin via malformed msgpack in websocket request. | |
| Weaknesses | CWE-1287 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2026-03-17T13:37:43.947Z
Reserved: 2026-02-13T10:11:47.778Z
Link: CVE-2026-2454
Updated: 2026-03-17T13:37:40.901Z
Status : Awaiting Analysis
Published: 2026-03-16T21:16:33.890
Modified: 2026-03-17T14:20:01.670
Link: CVE-2026-2454
No data.
OpenCVE Enrichment
Updated: 2026-03-17T09:52:09Z