CVE-2022-2366: Mattermost Server

Medium severity, CVSS 5.3. EPSS: 0.6% chance of exploitation in the next 30 days.

Incorrect default configuration for trusted IP header in Mattermost version 6.7.0 and earlier allows attacker to bypass some of the rate limitations in place or use manipulated IPs for audit logging via manipulating the request headers.

Affected products

• Mattermost Mattermost Server: before 6.3.9 (fixed in 6.3.9); from 6.4.0, before 6.5.2 (fixed in 6.5.2); from 6.6.0, before 6.6.2 (fixed in 6.6.2); version 6.7.0 only

Published 2022-07-12. Last modified 2026-06-17.