CVE-2024-39810: Mattermost

Medium severity, CVSS 4.9. EPSS: 0.5% chance of exploitation in the next 30 days.

Mattermost versions 9.5.x <= 9.5.7 and 9.10.x <= 9.10.0 fail to time limit and size limit the CA path file in the ElasticSearch configuration which allows a System Role with access to the Elasticsearch system console to add any file as a CA path field, such as /dev/zero and, after testing the connection, cause the application to crash.

Affected products

• Mattermost Mattermost: from 9.5.0, before 9.5.8 (fixed in 9.5.8); from 9.10.0, before 9.10.1 (fixed in 9.10.1)

Published 2024-08-22. Last modified 2026-06-17.