Go/github.com/mattermost/mattermost-server CVE-2025-12419: critical 9.9, EPSS 0.37%
Mattermost fails to properly validate OAuth state tokens during OpenID Connect authentication 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-2025-4168
- nvd: CVE-2025-12419
- https://github.com/advisories/GHSA-3x39-62h4-f8j6
- https://github.com/mattermost/mattermost/commit/15364790cc277cfaa372693d2d5442b87f70fd42
- https://github.com/mattermost/mattermost/commit/364c2203de00fe0d8424b6b46d6f0eeb02a2539a
- https://github.com/mattermost/mattermost/commit/46b5c436bb3093cc1da3fa2455f93d4c52389eee
- https://github.com/mattermost/mattermost/commit/c3f4818afe46a7084740e809708ae22641c76d8d
- https://github.com/mattermost/mattermost/commit/d3ed703dc8330684952eb8d49a375bac6ea7b0c6
- https://github.com/mattermost/mattermost/pull/34296
- https://mattermost.com/security-updates
CVE-2025-12419 · published · modified · JSON