Mattermost Summary

Mattermost has published 27 vulnerabilities in 2025.

Vulnerability Breakdown

CRITICAL
4
HIGH
2
MEDIUM
16
LOW
5

Vulnerability Severity By Month 2025

Total Mattermost Vulnerabilities

CRITICAL
21
HIGH
71
MEDIUM
249
LOW
43

Plus 7 vulnerabilities without a severity rating.

Vulnerability Severity By Year

Vulnerability Published Matrix for 2025

Vulnerability Published Matrix for 2024