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.
1.100.0-1ubuntu11.90.0-10.19.2+dfsg-60.24.0+dfsg-10.24.0+dfsg-1ubuntu0.1~esm10.24.0+dfsg-1ubuntu0.1~esm41.10.0-11.10.0-21.11.0-11.11.0-1ubuntu0.1~esm21.3.0-11.4.0-11.5.0-11.5.1-11.6.0-11.6.1-1+7 more1.39.0-11.47.0-21.47.1-11.48.0-11.49.0-11.49.2-11.50.1-11.50.2-11.51.0-11.52.0-1+2 moreExploitability
AV:NAC:LAT:NPR:HUI:NVulnerable System
VC:NVI:NVA:LSubsequent System
SC:NSI:NSA:NCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N