Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events
Exact source revision recorded 1 Nov 2026 00:11:08 UTC. It does not establish the source's current position. Latest evidence.
euvd · EUVD-2025-186556
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datePublished: Nov 14, 2025, 8:02:24 AM
dateUpdated: Nov 14, 2025, 3:47:52 PM
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