CVE-2023-48369: Mattermost

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

Mattermost fails to limit the log size of server logs allowing an attacker sending specially crafted requests to different endpoints to potentially overflow the log.

Affected products

• Mattermost Mattermost: up to and including 7.8.12; from 8.0.0, up to and including 8.1.3; from 9.0.0, up to and including 9.0.1; version 9.1.0 only

Published 2023-11-27. Last modified 2026-06-17.