GO-2025-4128

vendorUSosv

Mattermost does not enforce MFA on WebSocket connections in github.com/mattermost/mattermost-server

view advisory published 2025-11-17Licence: per source

Mattermost does not enforce MFA on WebSocket connections in github.com/mattermost/mattermost-server

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2025-55070UShigh7.5OT elevated—
Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events
02

references

External citations — patches, advisories, analysis.

scry

Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.

Free scan