PYSEC-2023-66

Import Source

https://github.com/pypa/advisory-database/blob/main/vulns/matrix-synapse/PYSEC-2023-66.yaml

Aliases

• CVE-2022-39374
• GHSA-p9qp-c452-f9r7

Published

2023-05-26T14:15:00Z

Modified

2023-11-08T04:10:20.163376Z

Details

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

References

• https://github.com/matrix-org/synapse/pull/13723
• https://github.com/matrix-org/synapse/security/advisories/GHSA-p9qp-c452-f9r7