CVE ID:	CVE-2022-39374
Description:	Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. If Synapse and a malicious homeserver are both joined to the same room, the malicious homeserver can trick Synapse into accepting previously rejected events into its view of the current state of that room. This can be exploited in a way that causes all further messages and state changes sent in that room from the vulnerable homeserver to be rejected. This issue has been patched in version 1.68.0
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2022-39374 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UJIJRP5ZH6B3KGFLHCAKR2IX2Y4Z25QD/ https://github.com/matrix-org/synapse/pull/13723 https://github.com/matrix-org/synapse/pull/13723 https://github.com/matrix-org/synapse/security/advisories/GHSA-p9qp-c452-f9r7 https://github.com/matrix-org/synapse/security/advisories/GHSA-p9qp-c452-f9r7