Mattermost Summary

Mattermost has published 103 vulnerabilities in 2025.

Vulnerability Breakdown

CRITICAL
4
HIGH
10
MEDIUM
62
LOW
27

Vulnerability Severity By Month 2025

Total Mattermost Vulnerabilities

CRITICAL
21
HIGH
78
MEDIUM
299
LOW
67

Plus 2 vulnerabilities without a severity rating.

Vulnerability Severity By Year

Vulnerability Published Matrix for 2025

Vulnerability Published Matrix for 2024