ALT-PU-2020-1099-1
Package matrix-synapse updated to version 1.8.0-alt1 for branch sisyphus in task 245100.
Closed vulnerabilities
Published: 2019-11-08
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2019-18835
Matrix Synapse before 1.5.0 mishandles signature checking on some federation APIs. Events sent over /send_join, /send_leave, and /invite may not be correctly signed, or may not come from the expected servers.
Severity: CRITICAL (9.8)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References: