Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization in the Connected Workspaces API. An attacker can change the displayed status of local users by connecting a malicious remote server using the Connected Workspaces feature. Remediation Upgrade...

CVE-2026-27769

Mattermost versions 10.11.x = 10.11.12 fail to validate whether users were correctly owned by the correct Connected Workspace which allows a malicious remote server connected using the Conntexted Workspaces feature to change the displayed status of local users via the Connected Workspaces API...