Go/github.com/mattermost/mattermost-server/v5 CVE-2026-22545: unknown, EPSS 0.15%
Mattermost fails to validate user's authentication method when processing account auth type switch 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-2026-4786#Go/github.com/mattermost/mattermost-server/v5
- https://github.com/advisories/GHSA-rv67-7w2g-7976
- https://nvd.nist.gov/vuln/detail/CVE-2026-22545
- https://github.com/mattermost/mattermost/commit/ced9a56e3988fe9fd4559d45f9971dbd562e2218
- https://mattermost.com/security-updates
CVE-2026-22545 · published · modified · JSON