Security
Headlines
HeadlinesLatestCVEs

Headline

GHSA-xpg8-8xpv-948p: Mattermost does not enforce MFA on 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.

ghsa
#web#git#auth
  1. GitHub Advisory Database
  2. GitHub Reviewed
  3. CVE-2025-55070

Mattermost does not enforce MFA on WebSocket connections

Moderate severity GitHub Reviewed Published Nov 14, 2025 to the GitHub Advisory Database • Updated Nov 17, 2025

Package

gomod github.com/mattermost/mattermost-server (Go)

Affected versions

< 11.1.0

gomod github.com/mattermost/mattermost/server/v8 (Go)

< 8.0.0-20250912063506-7d8b7b5e4a60

8.0.0-20250912063506-7d8b7b5e4a60

Description

Published to the GitHub Advisory Database

Nov 14, 2025

Last updated

Nov 17, 2025

ghsa: Latest News

GHSA-7xcv-9j6c-2fmc: Modular Max Serve has Unsafe Deserialization vulnerability