Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | telegram-desktop | 2.9.2+ds-1 | — |
| Debian 12 | telegram-desktop | 2.9.2+ds-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | telegram-desktop | No fix yet | — |
| Ubuntu 20.04 LTS | telegram-desktop | No fix yet | — |
| Ubuntu 18.04 LTS | telegram-desktop | No fix yet | — |