| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/mattermost/mattermost-server | ≥ 10.5.0, < 10.5.5≥ 10.5.0+incompatible, < 10.5.5+incompatible≥ 9.11.0, < 9.11.14≥ 9.11.0+incompatible, < 9.11.14+incompatible | 10.5.510.5.5+incompatible9.11.149.11.14+incompatible |
| github.com/mattermost/mattermost-server/v5 | all versions | |
| github.com/mattermost/mattermost-server/v6 | all versions | |
| github.com/mattermost/mattermost/server/v8 | < 8.0.0-20250422131222-701ddc896a10 | 8.0.0-20250422131222-701ddc896a10 |
| mattermost server | ≥ 10.5.0, < 10.5.5≥ 9.11.0, < 9.11.14 | 10.5.59.11.14 |
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}.
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