low3.1
CVE-2025-4128
Mattermost allows guest users to view information about public teams they are not members of
Impact
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}.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost/server/v8 | < 8.0.0-20250422131222-701ddc896a10 | 8.0.0-20250422131222-701ddc896a10 |
| go | github.com/mattermost/mattermost-server | >= 10.5.0, < 10.5.5 | 10.5.5 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mattermost | Mattermost Server | from 9.11.0 before 9.11.14 from 10.5.0 before 10.5.5 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://mattermost.com/security-updates
- https://github.com/advisories/GHSA-jwhw-xf5v-qgxc
- https://nvd.nist.gov/vuln/detail/CVE-2025-4128
- https://github.com/mattermost/mattermost/commit/2138a5f2ca6f75e2b99f6a04ea569d0f680c4fab
- https://github.com/mattermost/mattermost/commit/701ddc896a107b13f457fbdbe229bce5019fc516