Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to lockout LDAP users following repeated login failures, which allows attackers to lock external LDAP accounts through repeated login failures through Mattermost.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| github.com/mattermost/mattermost/server/v8(Go) | 10.6.0 | 10.6.2 | N/A |
| github.com/mattermost/mattermost/server/v8(Go) | 10.5.0 | 10.5.3 | N/A |
| github.com/mattermost/mattermost/server/v8(Go) | 10.4.0 | 10.4.5 | N/A |
| github.com/mattermost/mattermost/server/v8(Go) | 9.11.0 | 9.11.12 | N/A |
| github.com/mattermost/mattermost/server/v8(Go) | 0 | 8.0.0-20250415054241-76ab3867b785 | N/A |
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