Mattermost Server 9.11.x < 9.11.18 / 10.5.x < 10.5.9 / 10.8.x < 10.8.4 / 10.9.x < 10.9.3 / 10.10.x < 10.10.1 / 10.11.0 Unrestricted Upload of File (MMSA-2025-00505)

The version of Mattermost Server installed on the remote host is affected by a vulnerability as referenced in the MMSA-2025-00505 advisory. - Mattermost versions 10.8.x = 10.8.3, 10.5.x = 10.5.8, 9.11.x = 9.11.17, 10.9.x = 10.9.2, 10.10.x = 10.10.0 fail to validate upload types in remote cluster...

CVE-2025-49222

Mattermost CVE-2025-49222 affects Mattermost Server versions 9.11.x, 10.5.x, 10.8.x, 10.9.x, and 10.10.x, where upload type validation in remote cluster upload sessions can be bypassed, allowing a system admin to upload non‑attachment file types that may be placed in arbitrary filesystem director...

Low: jetty

Issue Overview: For Eclipse Jetty versions = 9.4.40, = 10.0.2, = 11.0.2, if an exception is thrown from the SessionListenersessionDestroyed method, then the session ID is not invalidated in the session ID manager. On deployments with clustered sessions and multiple contexts this can result in a...