Mattermost versions 10.1.x <= 10.1.2, 10.0.x <= 10.0.2, 9.11.x <= 9.11.4, 9.5.x <= 9.5.12 fail to limit the file size for slack import file uploads which allows a user to cause a DoS via zip bomb by importing data in a team they are a team admin.
The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Mattermost_server | Mattermost | 9.5.0 (including) | 9.5.13 (excluding) |
| Mattermost_server | Mattermost | 9.11.0 (including) | 9.11.5 (excluding) |
| Mattermost_server | Mattermost | 10.0.0 (including) | 10.0.3 (excluding) |
| Mattermost_server | Mattermost | 10.1.0 (including) | 10.1.3 (excluding) |