Mattermost Summary

Mattermost has published 82 vulnerabilities in 2025.

Vulnerability Breakdown

CRITICAL
4
HIGH
6
MEDIUM
52
LOW
20

Vulnerability Severity By Month 2025

Total Mattermost Vulnerabilities

CRITICAL
21
HIGH
74
MEDIUM
289
LOW
60

Plus 2 vulnerabilities without a severity rating.

Vulnerability Severity By Year

Vulnerability Published Matrix for 2025

Vulnerability Published Matrix for 2024