Mattermost Server 10.11.x < 10.11.23 / 11.7.x < 11.7.8 / 11.8.x < 11.8.5 / 11.9.x < 11.9.1 Incorrect Authorization (MMSA-2026-00702)

The version of Mattermost Server installed on the remote host is affected by a vulnerability as referenced in the MMSA-2026-00702 advisory. - Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 fail to sanitize Team objects returned by the data retention team...

CVE-2026-91181: Incorrect Authorization

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 Fail to sanitize Team objects returned by the data retention teams endpoint which allows an authenticated user holding only the read-only Data Retention Policy permission to obtain a private team's secret...