Описание
Mattermost allows authenticated guest users to enumerate user IDs outside their allowed visibility scope
Mattermost versions 11.2.x <= 11.2.2, 10.11.x <= 10.11.10, 11.4.x <= 11.4.0, 11.3.x <= 11.3.1 fail to apply view restrictions when retrieving group member IDs, which allows authenticated guest users to enumerate user IDs outside their allowed visibility scope via the group retrieval endpoint. Mattermost Advisory ID: MMSA-2026-00594.
Пакеты
github.com/mattermost/mattermost/server/v8
= 11.4.0
11.4.1
github.com/mattermost/mattermost/server/v8
>= 11.3.0-rc1, < 11.3.2
11.3.2
github.com/mattermost/mattermost/server/v8
>= 11.2.0-rc1, < 11.2.3
11.2.3
github.com/mattermost/mattermost/server/v8
>= 10.11.0-rc1, < 10.11.11
10.11.11
github.com/mattermost/mattermost/server/v8
>= 8.0.0-20260105080200-d27a2195068d, < 8.0.0-20260217110922-b7d4a1f1f59b
8.0.0-20260217110922-b7d4a1f1f59b
Связанные уязвимости
Mattermost versions 11.2.x <= 11.2.2, 10.11.x <= 10.11.10, 11.4.x <= 11.4.0, 11.3.x <= 11.3.1 fail to apply view restrictions when retrieving group member IDs, which allows authenticated guest users to enumerate user IDs outside their allowed visibility scope via the group retrieval endpoint.. Mattermost Advisory ID: MMSA-2026-00594
Mattermost versions 11.2.x <= 11.2.2, 10.11.x <= 10.11.10, 11.4.x <= 1 ...