Project Subscriptions
No advisories yet.
Solution
Update Mattermost to versions 11.4.0, 10.11.11 or higher.
Workaround
No workaround given by the vendor.
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
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Wed, 18 Mar 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost mattermost Server
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Mattermost mattermost Server
|
Tue, 17 Mar 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Tue, 17 Mar 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost
Mattermost mattermost |
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| Vendors & Products |
Mattermost
Mattermost mattermost |
Mon, 16 Mar 2026 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mattermost versions 10.11.x <= 10.11.10 fail to properly validate permission requirements in the team member roles API endpoint which allows team administrators to demote members to guest role. Mattermost Advisory ID: MMSA-2025-00531 | |
| Title | Team Admin Privilege Escalation to Demote Members to Guest | |
| Weaknesses | CWE-863 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2026-03-17T13:37:17.914Z
Reserved: 2026-02-13T10:39:47.088Z
Link: CVE-2026-26230
Updated: 2026-03-17T13:37:14.472Z
Status : Analyzed
Published: 2026-03-16T21:16:33.480
Modified: 2026-03-18T13:56:13.130
Link: CVE-2026-26230
No data.
OpenCVE Enrichment
Updated: 2026-03-17T09:52:08Z