low3.1
CVE-2025-9084
Mattermost Open Redirect vulnerability
Impact
Mattermost versions 10.5.x <= 10.5.9 fail to properly validate redirect URLs which allows attackers to redirect users to malicious sites via crafted OAuth login URLs.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost/server/v8 | < 8.0.0-202508080704-39bd251fe4f600 | 8.0.0-202508080704-39bd251fe4f600 |
| go | github.com/mattermost/mattermost-server | >= 10.5.0, < 10.5.10 | 10.5.10 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mattermost | Mattermost Server | from 10.5.0 before 10.5.10 |