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.
Advisories
Source ID Title
EUVD EUVD EUVD-2023-0137 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.
Github GHSA Github GHSA GHSA-45cj-f97f-ggwv Synapse does not apply enough checks to servers requesting auth events of events in a room
Ubuntu USN Ubuntu USN USN-7444-1 Synapse vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 14 Jan 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-02-13T16:32:59.633Z

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

Link: CVE-2022-39335

cve-icon Vulnrichment

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

cve-icon NVD

Status : Modified

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

Modified: 2024-11-21T07:18:03.867

Link: CVE-2022-39335

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.