Go/github.com/mattermost/mattermost-server/v5 CVE-2025-55074: low 3.5, EPSS 0.18%
Mattermost allows other users to determine when users had read channels via channel member objects in github.com/mattermost/mattermost-server
Action: No fix published. Pin and monitor.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | - | - |
Fixed versions
No fixed version in the source.
Sources
- osv: GO-2025-4133#Go/github.com/mattermost/mattermost-server/v5
- nvd: CVE-2025-55074
- https://github.com/advisories/GHSA-9hh7-6558-qfp2
- https://github.com/mattermost/mattermost/commit/98acefe911dd9de7edf47a7d825dd99f53141a52
- https://github.com/mattermost/mattermost/commit/ba86dfc5876b354b9d3c20ff45c08ca6f8426149
- https://github.com/mattermost/mattermost/commit/d72d437f1567ba0b639b6e4fd73bab06c51baab5
- https://github.com/mattermost/mattermost/pull/33835
- https://github.com/mattermost/mattermost/pull/33905
- https://mattermost.com/security-updates
CVE-2025-55074 · published · modified · JSON