Mattermost Summary

Mattermost has published 86 vulnerabilities in 2025.

Vulnerability Breakdown

CRITICAL
4
HIGH
7
MEDIUM
54
LOW
21

Vulnerability Severity By Month 2025

Total Mattermost Vulnerabilities

CRITICAL
21
HIGH
75
MEDIUM
291
LOW
61

Plus 2 vulnerabilities without a severity rating.

Vulnerability Severity By Year

Vulnerability Published Matrix for 2025

Vulnerability Published Matrix for 2024