Mattermost Summary

Mattermost has published 88 vulnerabilities in 2025.

Vulnerability Breakdown

CRITICAL
4
HIGH
8
MEDIUM
54
LOW
22

Vulnerability Severity By Month 2025

Total Mattermost Vulnerabilities

CRITICAL
21
HIGH
76
MEDIUM
291
LOW
62

Plus 2 vulnerabilities without a severity rating.

Vulnerability Severity By Year

Vulnerability Published Matrix for 2025

Vulnerability Published Matrix for 2024