Mattermost versions 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly restrict API access to team information, allowing guest users to bypass permissions and view information about public teams they are not members of via a direct API call to /api/v4/teams/{team_id}.
                
            Metrics
Affected Vendors & Products
References
        | Link | Providers | 
|---|---|
| https://mattermost.com/security-updates | 
                     | 
            
History
                    Sun, 13 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | 
        
        
        epss
         
  | 
    
        
        
        epss
         
  | 
Tue, 08 Jul 2025 20:00:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | 
        
        Mattermost
         Mattermost mattermost Server  | 
|
| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | |
| Vendors & Products | 
        
        Mattermost
         Mattermost mattermost Server  | 
Wed, 11 Jun 2025 14:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | 
        
        ssvc
         
  | 
Wed, 11 Jun 2025 10:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Description | Mattermost versions 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly restrict API access to team information, allowing guest users to bypass permissions and view information about public teams they are not members of via a direct API call to /api/v4/teams/{team_id}. | |
| Title | Mattermost Guest User Information Disclosure Vulnerability | |
| Weaknesses | CWE-863 | |
| References | 
         | |
| Metrics | 
        
        cvssV3_1
         
  | 
Status: PUBLISHED
Assigner: Mattermost
Published: 2025-06-11T10:25:04.917Z
Updated: 2025-06-11T13:12:40.338Z
Reserved: 2025-04-30T07:45:45.749Z
Link: CVE-2025-4128
Updated: 2025-06-11T13:12:36.277Z
Status : Analyzed
Published: 2025-06-11T11:15:23.143
Modified: 2025-07-08T19:42:06.743
Link: CVE-2025-4128
No data.