Mattermost fails to properly validate the length of the emoji value in the custom user status, allowing an attacker to send multiple times a very long string as an emoji value causing high resource consumption and possibly crashing the server.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| github.com/mattermost/mattermost/server/v8(Go) | 9.3.0 | 9.3.1 | N/A |
| github.com/mattermost/mattermost/server/v8(Go) | 9.2.0 | 9.2.5 | N/A |
CVSS Metrics
