GHSA-j6gg-r5jc-47cm
Mattermost fails to properly restrict access to archived channel search API
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/mattermost/mattermost/server/v8 | < 8.0.0-20250815165020-c8d66301415d | 8.0.0-20250815165020-c8d66301415d |
| Go | github.com/mattermost/mattermost | < 5.3.2-0.20250815165020-c8d66301415d | 5.3.2-0.20250815165020-c8d66301415d |
| Go | github.com/mattermost/mattermost-server | < 5.3.2-0.20250815165020-c8d66301415d | 5.3.2-0.20250815165020-c8d66301415d |
| Go | github.com/mattermost/mattermost-server/v5 | < 5.3.2-0.20250815165020-c8d66301415d | 5.3.2-0.20250815165020-c8d66301415d |
| Go | github.com/mattermost/mattermost-server/v6 | < 5.3.2-0.20250815165020-c8d66301415d | 5.3.2-0.20250815165020-c8d66301415d |
Details
As written in the advisory (Markdown source, shown as plain text).
Mattermost versions < 11 fail to properly restrict access to archived channel search API which allows guest users to discover archived public channels via the `/api/v4/teams/{team_id}/channels/search_archived` endpoint
References
External links from the advisory. They lead to third-party sites.