CVE-2024-52032: Mattermost Server

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Mattermost versions 10.0.x <= 10.0.0 and 9.11.x <= 9.11.2 fail to properly query ElasticSearch when searching for the channel name in channel switcher which allows an attacker to get private channels names of channels that they are not a member of, when Elasticsearch v8 was enabled.

Affected products

• Mattermost Mattermost Server: from 9.11.0, before 9.11.3 (fixed in 9.11.3); version 10.0.0 only

Published 2024-11-09. Last modified 2026-06-17.