Описание
Mattermost doesn't properly validate msgpack-encoded WebSocket frames before memory allocation
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to properly validate msgpack-encoded WebSocket frames before memory allocation which allows an unauthenticated remote attacker to crash the server process and cause a full service outage for all users via a crafted binary WebSocket message sent to the public WebSocket endpoint.. Mattermost Advisory ID: MMSA-2026-00647
Пакеты
github.com/mattermost/mattermost-server
= 11.6.0
11.6.1
github.com/mattermost/mattermost-server
>= 11.5.0, < 11.5.4
11.5.4
github.com/mattermost/mattermost-server
>= 11.4.0, < 11.4.5
11.4.5
github.com/mattermost/mattermost-server
>= 10.11.0, < 10.11.15
10.11.15
github.com/mattermost/mattermost/server/v8
< 8.0.0-20260410202636-17939826efa2
8.0.0-20260410202636-17939826efa2
Связанные уязвимости
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to properly validate msgpack-encoded WebSocket frames before memory allocation which allows an unauthenticated remote attacker to crash the server process and cause a full service outage for all users via a crafted binary WebSocket message sent to the public WebSocket endpoint.. Mattermost Advisory ID: MMSA-2026-00647
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4 ...
Уязвимость модуля msgpack приложения для обмена мгновенными сообщениями Mattermost, позволяющая нарушителю вызвать отказ в обслуживании