Vulnerabilities > CVE-2022-31152 - Improper Handling of Exceptional Conditions vulnerability in Matrix Synapse

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

matrix

CWE-755

NVD

Published: 2022-09-02

Updated: 2024-11-21

Summary

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](https://spec.matrix.org/v1.2/rooms/v9/#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 version 1.61.0, some of these rules are not correctly applied. An attacker could craft events which would be accepted by Synapse but not a spec-conformant server, potentially causing divergence in the room state between servers. Administrators of homeservers with federation enabled are advised to upgrade to version 1.62.0 or higher. Federation can be disabled by setting [`federation_domain_whitelist`](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#federation_domain_whitelist) to an empty list (`[]`) as a workaround.

Vulnerable Configurations

Part	Description	Count
Application	Matrix Matrix Synapse - Matrix Synapse 0.0.1 Matrix Synapse 0.1.0 Matrix Synapse 0.1.1 Matrix Synapse 0.1.2 Matrix Synapse 0.2.0 Matrix Synapse 0.2.1 Matrix Synapse 0.2.2 Matrix Synapse 0.2.3 Matrix Synapse 0.3.0 Matrix Synapse 0.3.1 Matrix Synapse 0.3.2 Matrix Synapse 0.3.3 Matrix Synapse 0.3.4 Matrix Synapse 0.4.0 Matrix Synapse 0.4.1 Matrix Synapse 0.4.2 Matrix Synapse 0.5.0 Matrix Synapse 0.5.1 Matrix Synapse 0.5.2 Matrix Synapse 0.5.3 Matrix Synapse 0.5.4 Matrix Synapse 0.6.0 Matrix Synapse 0.6.1 Matrix Synapse 0.7.0 Matrix Synapse 0.7.1 Matrix Synapse 0.8.0 Matrix Synapse 0.8.1 Matrix Synapse 0.9.0 Matrix Synapse 0.9.1 Matrix Synapse 0.9.2 Matrix Synapse 0.9.3 Matrix Synapse 0.9.4 Matrix Synapse 0.10.0 Matrix Synapse 0.10.1 Matrix Synapse 0.11.0 Matrix Synapse 0.11.1 Matrix Synapse 0.12.0 Matrix Synapse 0.12.1 Matrix Synapse 0.13.0 Matrix Synapse 0.13.1 Matrix Synapse 0.13.2 Matrix Synapse 0.13.3 Matrix Synapse 0.14.0 Matrix Synapse 0.15.0 Matrix Synapse 0.16.0 Matrix Synapse 0.16.1 Matrix Synapse 0.17.0 Matrix Synapse 0.17.1 Matrix Synapse 0.17.2 Matrix Synapse 0.17.3 Matrix Synapse 0.18.0 Matrix Synapse 0.18.1 Matrix Synapse 0.18.2 Matrix Synapse 0.18.3 Matrix Synapse 0.18.4 Matrix Synapse 0.18.5 Matrix Synapse 0.18.6 Matrix Synapse 0.18.7 Matrix Synapse 0.19.0 Matrix Synapse 0.19.1 Matrix Synapse 0.19.2 Matrix Synapse 0.19.3 Matrix Synapse 0.20.0 Matrix Synapse 0.21.0 Matrix Synapse 0.21.1 Matrix Synapse 0.22.0 Matrix Synapse 0.22.1 Matrix Synapse 0.23.0 Matrix Synapse 0.23.1 Matrix Synapse 0.24.0 Matrix Synapse 0.24.1 Matrix Synapse 0.25.0 Matrix Synapse 0.25.1 Matrix Synapse 0.26.0 Matrix Synapse 0.26.1 Matrix Synapse 0.27.0 Matrix Synapse 0.27.1 Matrix Synapse 0.27.2 Matrix Synapse 0.27.3 Matrix Synapse 0.27.4 Matrix Synapse 0.28.0 Matrix Synapse 0.28.1 Matrix Synapse 0.29.0 Matrix Synapse 0.29.1 Matrix Synapse 0.30.0 Matrix Synapse 0.31.0 Matrix Synapse 0.31.1 Matrix Synapse 0.31.2 Matrix Synapse 0.32.0 Matrix Synapse 0.32.1 Matrix Synapse 0.32.2 Matrix Synapse 0.33.0 Matrix Synapse 0.33.1 Matrix Synapse 0.33.2 Matrix Synapse 0.33.2.1 Matrix Synapse 0.33.3 Matrix Synapse 0.33.3.1 Matrix Synapse 0.33.4 Matrix Synapse 0.33.5 Matrix Synapse 0.33.5.1 Matrix Synapse 0.33.6 Matrix Synapse 0.33.7 Matrix Synapse 0.33.8 Matrix Synapse 0.33.9 Matrix Synapse 0.34.0 Matrix Synapse 0.34.0.1 Matrix Synapse 0.34.1 Matrix Synapse 0.34.1.1 Matrix Synapse 0.88.5.1 Matrix Synapse 0.99.0 Matrix Synapse 0.99.1 Matrix Synapse 0.99.1.1 Matrix Synapse 0.99.2 Matrix Synapse 0.99.3 Matrix Synapse 0.99.3.1 Matrix Synapse 0.99.3.2 Matrix Synapse 0.99.4 Matrix Synapse 0.99.5 Matrix Synapse 0.99.5.2 Matrix Synapse 1.0.0 Matrix Synapse 1.1.0 Matrix Synapse 1.2.0 Matrix Synapse 1.2.1 Matrix Synapse 1.3.0 Matrix Synapse 1.3.1 Matrix Synapse 1.4.0 Matrix Synapse 1.4.1 Matrix Synapse 1.5.0 Matrix Synapse 1.5.1 Matrix Synapse 1.6.0 Matrix Synapse 1.6.1 Matrix Synapse 1.7.0 Matrix Synapse 1.7.1 Matrix Synapse 1.7.2 Matrix Synapse 1.7.3 Matrix Synapse 1.8.0 Matrix Synapse 1.9.0 Matrix Synapse 1.9.1 Matrix Synapse 1.10.0 Matrix Synapse 1.10.1 Matrix Synapse 1.11.0 Matrix Synapse 1.11.1 Matrix Synapse 1.12.0 Matrix Synapse 1.12.1 Matrix Synapse 1.12.2 Matrix Synapse 1.12.3 Matrix Synapse 1.12.4 Matrix Synapse 1.13.0 Matrix Synapse 1.14.0 Matrix Synapse 1.15.0 Matrix Synapse 1.15.1 Matrix Synapse 1.15.2 Matrix Synapse 1.16.0 Matrix Synapse 1.16.1 Matrix Synapse 1.17.0 Matrix Synapse 1.18.0 Matrix Synapse 1.19.0 Matrix Synapse 1.19.1 Matrix Synapse 1.19.2 Matrix Synapse 1.19.3 Matrix Synapse 1.20.0 Matrix Synapse 1.21.0 Matrix Synapse 1.21.1 Matrix Synapse 1.21.2 Matrix Synapse 1.22.0 Matrix Synapse 1.22.1 Matrix Synapse 1.23.0 Matrix Synapse 1.23.1 Matrix Synapse 1.24.0 Matrix Synapse 1.25.0 Matrix Synapse 1.26.0 Matrix Synapse 1.27.0 Matrix Synapse 1.28.0 Matrix Synapse 1.29.0 Matrix Synapse 1.30.0 Matrix Synapse 1.30.1 Matrix Synapse 1.31.0 Matrix Synapse 1.32.0 Matrix Synapse 1.32.1 Matrix Synapse 1.32.2 Matrix Synapse 1.33.0 Matrix Synapse 1.33.1 Matrix Synapse 1.33.2 Matrix Synapse 1.34.0 Matrix Synapse 1.35.0 Matrix Synapse 1.35.1 Matrix Synapse 1.36.0 Matrix Synapse 1.37.0 Matrix Synapse 1.37.1 Matrix Synapse 1.38.0 Matrix Synapse 1.38.1 Matrix Synapse 1.39.0 Matrix Synapse 1.40.0 Matrix Synapse 1.41.0 Matrix Synapse 1.41.1 Matrix Synapse 1.42.0 Matrix Synapse 1.43.0 Matrix Synapse 1.44.0 Matrix Synapse 1.45.0 Matrix Synapse 1.45.1 Matrix Synapse 1.46.0 Matrix Synapse 1.47.0 Matrix Synapse 1.47.1 Matrix Synapse 1.48.0 Matrix Synapse 1.49.0 Matrix Synapse 1.49.1 Matrix Synapse 1.49.2 Matrix Synapse 1.50.0 Matrix Synapse 1.50.1 Matrix Synapse 1.50.2 Matrix Synapse 1.51.0 Matrix Synapse 1.52.0 Matrix Synapse 1.53.0 Matrix Synapse 1.54.0 Matrix Synapse 1.55.0 Matrix Synapse 1.55.1 Matrix Synapse 1.55.2 Matrix Synapse 1.56.0 Matrix Synapse 1.57.0 Matrix Synapse 1.57.1 Matrix Synapse 1.58.0 Matrix Synapse 1.58.1 Matrix Synapse 1.59.0 Matrix Synapse 1.59.1 Matrix Synapse 1.60.0 Matrix Synapse 1.61.0 Matrix Synapse 1.61.1	434

Common Weakness Enumeration (CWE)

CWE-755 - Improper Handling of Exceptional Conditions

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

References