CVE-2025-11776
Fixed in a distro release EPSS <1%CVSS 4.3
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
Products: Mattermost
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Go | github.com/mattermost/mattermost | 5.3.2-0.20250815165020-c8d66301415d |
| Go | github.com/mattermost/mattermost | no fix |
| Go | github.com/mattermost/mattermost-server | 5.3.2-0.20250815165020-c8d66301415d |
| Go | github.com/mattermost/mattermost-server | no fix |
| Go | github.com/mattermost/mattermost-server/v5 | 5.3.2-0.20250815165020-c8d66301415d |
| Go | github.com/mattermost/mattermost-server/v5 | no fix |
| Go | github.com/mattermost/mattermost-server/v6 | 5.3.2-0.20250815165020-c8d66301415d |
| Go | github.com/mattermost/mattermost-server/v6 | no fix |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250815165020-c8d66301415d |
| Go | github.com/mattermost/mattermost/v5 | no fix |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 |