CVE-2025-55070
Mattermost does not enforce MFA on WebSocket connections in github.com/mattermost/mattermost-server
6.5
MEDIUM
CVSS 3.1
EPSS 0.15%
Description
Mattermost does not enforce MFA on WebSocket connections in github.com/mattermost/mattermost-server
How to fix CVE-2025-55070
To remediate CVE-2025-55070, upgrade the affected package to a fixed version below.
- Go/github.com/mattermost/mattermost-server—upgrade to 11.1.0 or later
- —upgrade to 11.1.0+incompatible or later
- —no fix listed
- —no fix listed
- —upgrade to 8.0.0-20250912063506-7d8b7b5e4a60 or later
- —upgrade to 8.0.0-20250912063506-7d8b7b5e4a60 or later
Is CVE-2025-55070 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, < 11.1.0
- from 0, < 11.1.0+incompatible
- from 0
- from 0
- from 0, < 8.0.0-20250912063506-7d8b7b5e4a60
- from 0, < 8.0.0-20250912063506-7d8b7b5e4a60
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |