Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix Federation API allows remote homeservers to request the authorization events in a room. This is necessary so that a homeserver receiving some events can validate that those events are legitimate and permitted in their room. However, in versions of Synapse up to and including 1.68.0, a Synapse homeserver answering a query for authorization events does not sufficiently check that the requesting server should be able to access them. The issue was patched in Synapse 1.69.0. Homeserver administrators are advised to upgrade.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-05-26T13:36:56.436Z

Updated: 2024-08-03T12:00:44.102Z

Reserved: 2022-09-02T14:16:35.875Z

Link: CVE-2022-39335

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-05-26T14:15:09.600

Modified: 2023-06-11T04:15:46.950

Link: CVE-2022-39335

cve-icon Redhat

No data.