A improper authentication vulnerability exists in Rocket.Chat <v5, <v4.8.2 and <v4.7.5 that allowed two factor authentication can be bypassed when telling the server to use CAS during login.
| Software | From | Fixed in |
|---|---|---|
| rocket.chat / rocket.chat | 4.8.0 | 4.8.2 |
| rocket.chat / rocket.chat | - | 4.7.5 |