CVE-2026-93846
Low
Description
Mattermost versions 11.7.x <= 11.7.10 fail to restrict which built-in roles can be assigned to a team member via the API, which allows a team admin to grant a team member permissions beyond those permitted by the configured permission scheme via the {{update-team-member-roles}} REST API.. Mattermost Advisory ID: MMSA-2026-00734
SeverityLow
CVSS3.8
Exploit probability—
Product
Mattermost
PublishedOct 26, 2026
First seenOct 26, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Mattermost Mattermost | 11.7.0 ≤ v ≤ 11.7.10 | — |
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