CVE-2023-43796

Published: 2023-10-31T17:15Z

Last Modified: 2025-02-13T17:17Z

Source: MITRE CVE List

License: MITRE-CVE-TOS

Synapse is an open-source Matrix homeserver Prior to versions 1.95.1 and 1.96.0rc1, cached device information of remote users can be queried from Synapse. This can be used to enumerate the remote users known to a homeserver. System administrators are encouraged to upgrade to Synapse 1.95.1 or 1.96.0rc1 to receive a patch. As a workaround, the `federation_domain_whitelist` can be used to limit federation traffic with a homeserver. > MITRE Terms of Use apply – see LICENSE‑MITRE.txt