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Diffstat (limited to '')
| -rw-r--r-- | synapse/visibility.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/synapse/visibility.py b/synapse/visibility.py index 100dc47a8a..d0abd8f04f 100644 --- a/synapse/visibility.py +++ b/synapse/visibility.py @@ -122,6 +122,13 @@ def filter_events_for_client( if not event.is_state() and event.sender in ignore_list: return None + # Until MSC2261 has landed we can't redact malicious alias events, so for + # now we temporarily filter out m.room.aliases entirely to mitigate + # abuse, while we spec a better solution to advertising aliases + # on rooms. + if event.type == EventTypes.Aliases: + return None + # Don't try to apply the room's retention policy if the event is a state event, as # MSC1763 states that retention is only considered for non-state events. if apply_retention_policies and not event.is_state(): |