CVE-2025-55070
Lack of MFA enforcement in WebSocket connections
Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products
Mattermost · MattermostWant to know if your infrastructure is exposed to this?
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https://mattermost.com/security-updates