CVE-2025-3611
LOW3.1EPSS 0.14%Mattermost fails to properly enforce access control restrictions for System Manager roles
Published: 5/30/2025Modified: 2/4/2026
Description
Mattermost versions 10.7.x <= 10.7.0, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly enforce access control restrictions for System Manager roles, allowing authenticated users with System Manager privileges to view team details they should not have access to via direct API requests to team endpoints, even when explicitly configured with 'No access' to Teams in the System Console.
Affected packages (5)
- Go/github.com/mattermost/mattermost-server>= 9.0.0-rc1+incompatible, < 9.11.13+incompatible, >= 10.0.0-rc1+incompatible, < 10.5.4+incompatible, >= 10.6.0-rc1+incompatible, < 10.7.1+incompatible
- Go/github.com/mattermost/mattermost-server/v5from 0
- Go/github.com/mattermost/mattermost-server/v6from 0
- Go/github.com/mattermost/mattermost/server/v8>= 10.6.0-rc1, < 10.7.1
- Go/github.com/mattermost/mattermost/server/v8from 0, < 8.0.0-20250414154356-6f33b721de76
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |