Mattermost Summary

Mattermost has published 55 vulnerabilities in 2025.

Vulnerability Breakdown

CRITICAL
5
HIGH
2
MEDIUM
32
LOW
16

Vulnerability Severity By Month 2025

Total Mattermost Vulnerabilities

CRITICAL
22
HIGH
70
MEDIUM
269
LOW
56

Plus 2 vulnerabilities without a severity rating.

Vulnerability Severity By Year

Vulnerability Published Matrix for 2025

Vulnerability Published Matrix for 2024