CVE-2025-41436
Mattermost versions <11.0 fail to properly enforce the "Allow users to view archived channels" setting which allows regular users to access archived channel content and files via the "Open in Channel" functionality from followed threads
- CVSS 3.1
- 4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-25)
- CWE
- CWE-863
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mattermost:mattermost_server
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-x3hx-ch7p-8xgg | Go | github.com/mattermost/mattermost-server | <11.0.0-alpha.1 | 11.0.0-alpha.1 |
| GHSA-x3hx-ch7p-8xgg | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250815165020-c8d66301415d | 8.0.0-20250815165020-c8d66301415d |
| GO-2025-4131 | Go | github.com/mattermost/mattermost-server | <11.0.0-alpha.1+incompatible | 11.0.0-alpha.1+incompatible |
| GO-2025-4131 | Go | github.com/mattermost/mattermost-server/v5 | all versions | no fix published |
| GO-2025-4131 | Go | github.com/mattermost/mattermost-server/v6 | all versions | no fix published |
| GO-2025-4131 | Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20250815165020-c8d66301415d | 8.0.0-20250815165020-c8d66301415d |