A reordering issue exists in Telegram before 7.8.1 for Android, Telegram before 7.8.3 for iOS, and Telegram Desktop before 2.8.8. An attacker can cause the server to receive messages in a different order than they were sent a client.
| Software | From | Fixed in |
|---|---|---|
| telegram / telegram | - | 7.8.3 |
| telegram / telegram_desktop | - | 2.8.8 |
| telegram / telegram | - | 7.8.1 |