GHSA-3c9r-7f29-qp32
Mattermost fails to properly validate login method restrictions
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/mattermost/mattermost/server/v8 | < 8.0.0-20251212052346-61651b0df7ea | 8.0.0-20251212052346-61651b0df7ea |
| Go | github.com/mattermost/mattermost-server | < 11.1.3 | no fix listed |
| Go | github.com/mattermost/mattermost-server | < 10.11.10 | no fix listed |
| Go | github.com/mattermost/mattermost-server | < 11.2.2 | no fix listed |
| Go | github.com/mattermost/mattermost-server | < 5.3.2-0.20251212052346-61651b0df7ea | 5.3.2-0.20251212052346-61651b0df7ea |
Details
As written in the advisory (Markdown source, shown as plain text).
Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to properly validate login method restrictions which allows an authenticated user to bypass SSO-only login requirements via userID-based authentication. Mattermost Advisory ID: MMSA-2025-00548
References
External links from the advisory. They lead to third-party sites.