Protect against potential replay attacks

See #3753.
2025-08-08 04:52:30 +00:00 · 2022-05-18 12:24:28 +02:00
parent 09b9cd8193
commit 184984ac51
2 changed files with 63 additions and 0 deletions
--- a/telethon/network/mtprotosender.py
+++ b/telethon/network/mtprotosender.py
@@ -505,6 +505,8 @@ class MTProtoSender:

            try:
                message = self._state.decrypt_message_data(body)
+                if message is None:
+                    continue  # this message is to be ignored
            except TypeNotFoundError as e:
                # Received object which we don't know how to deserialize
                self._log.info('Type %08x not found, remaining data %r',