Description
Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15, 10.11.x <= 10.11.16 fail to restrict role_updated websocket event broadcasts to members of the affected team or channel which allows an authenticated attacker with guest-level access to observe permission scheme change notifications for private teams they are not a member of via the websocket connection.. Mattermost Advisory ID: MMSA-2026-00616
CVSS 4.3EPSS 0.18%Risque 0.44
Voir la source- Publication
- 2026-06-12 17:16:22
- Versions concernées
- <=11.6.1,<=11.5.4,<=10.11.15,<=10.11.16
- Type
- Application web
- Vecteur
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N