CVE-2025-27571 — Channel metadata visible in archived channels despite configuration setting
Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to check the "Allow Users to View Archived Channels" configuration when fetching channel metadata o…
Published: 2025-04-16 · CVSS: 4.3 · CVSS 3.1
Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to check the "Allow Users to View Archived Channels" configuration when fetching channel metadata of a post from archived channels, which allows authenticated users to access such information when a channel is archived.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7