CVE-2026-45076
LOW2.7CVSS v3
—CVSS v2
0.09%
EPSS (exploit probability)
CWE-20CWE
Description
Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, in federated rooms, malicious homeservers can craft room events in such a way that prevents Synapse from providing full history to paginating clients. Clients could therefore fail to display room history. This vulnerability is fixed in 1.152.1.
CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Affected routers (0)
No routers currently mapped to this CVE in our database.