diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml index 0589734b8..6ed75ff76 100644 --- a/docs/sample_config.yaml +++ b/docs/sample_config.yaml @@ -521,8 +521,11 @@ uploads_path: "DATADIR/uploads" # synapse to issue arbitrary GET requests to your internal services, # causing serious security issues. # -# This must be specified if url_preview_enabled. It is recommended that you -# uncomment the following list as a starting point. +# (0.0.0.0 and :: are always blacklisted, whether or not they are explicitly +# listed here, since they correspond to unroutable addresses.) +# +# This must be specified if url_preview_enabled is set. It is recommended that +# you uncomment the following list as a starting point. # #url_preview_ip_range_blacklist: # - '127.0.0.0/8' diff --git a/synapse/config/repository.py b/synapse/config/repository.py index d155d69d8..fbfcecc24 100644 --- a/synapse/config/repository.py +++ b/synapse/config/repository.py @@ -279,8 +279,11 @@ class ContentRepositoryConfig(Config): # synapse to issue arbitrary GET requests to your internal services, # causing serious security issues. # - # This must be specified if url_preview_enabled. It is recommended that you - # uncomment the following list as a starting point. + # (0.0.0.0 and :: are always blacklisted, whether or not they are explicitly + # listed here, since they correspond to unroutable addresses.) + # + # This must be specified if url_preview_enabled is set. It is recommended that + # you uncomment the following list as a starting point. # #url_preview_ip_range_blacklist: # - '127.0.0.0/8'