CVE-2026-8074
Low
Description
Mattermost versions 11.7.x <= 11.7.0, 10.11.x <= 10.11.17 fail to enforce bot-specific permission checks on the user active status endpoint, which allows a User Manager with user management write access but no Integrations access to deactivate bot accounts via the PUT /api/v4/users/{id}/active API endpoint.. Mattermost Advisory ID: MMSA-2026-00667
SeverityLow
CVSS3.8
Exploit probability—
Product
Mattermost Server
PublishedJun 22, 2026
First seenJun 22, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- mattermost mattermost_server10.11.18, 11.7.1 or later
- github.com/mattermost/mattermost-server11.7.1, 10.11.18, 10.11.18+incompatible, 11.7.1+incompatible or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mattermost mattermost_server | 10.11.0 ≤ v < 10.11.18, 11.7.0 ≤ v < 11.7.1 | 10.11.18, 11.7.1 |
| github.com/mattermost/mattermost-serverGo | 11.7.0 ≤ v < 11.7.1, 10.11.0 ≤ v < 10.11.18, 10.11.0+incompatible ≤ v < 10.11.18+incompatible, 11.7.0+incompatible ≤ v < 11.7.1+incompatible | 11.7.1, 10.11.18, 10.11.18+incompatible, 11.7.1+incompatible |
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