SUSE CVE-2022-31152

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix specification specifies a list of event authorization rules which must be checked when determining if an event should be accepted into a room. In versions of Synapse up to and including...

CVE-2022-31152: Improper Check or Handling of Exceptional Conditions

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix specification specifies a list of event authorization rules which must be checked when determining if an event should be accepted into a room. In versions of Synapse up to and including...

Denial of service due to incorrect application of event authorization rules

Impact The Matrix specification specifies a list of event authorization rules which must be checked when determining if an event should be accepted into a room. In versions of Synapse up to and including v1.61, some of these rules are not correctly applied. An attacker could craft events which...

PT-2022-20567

Name of the Vulnerable Software and Affected Versions Synapse versions up to and including 1.61.0 Description The issue arises from the incorrect application of event authorization rules as specified in the Matrix specification, potentially causing divergence in room state between servers. An...