Mattermost Summary

Mattermost has published 119 vulnerabilities in 2025.

Vulnerability Breakdown

CRITICAL
6
HIGH
11
MEDIUM
68
LOW
34

Vulnerability Severity By Month 2025

Total Mattermost Vulnerabilities

CRITICAL
23
HIGH
79
MEDIUM
305
LOW
74

Plus 2 vulnerabilities without a severity rating.

Vulnerability Severity By Year

Vulnerability Published Matrix for 2025

Vulnerability Published Matrix for 2024

Mattermost Cyber Security Vulnerability Stats and Metrics