CVE-2025-27571

published 2025-04-16

CVE-2025-27571: 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…

Priority P4 21 medium 4.3 CVSS 3.1

AV N AC L PR L UI N S U C L I N A N

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.

Affected

14 ranges

Vendor	Product	Version range	Fixed in
github.com	mattermost_mattermost-server	>= 10.4.0+incompatible < 10.4.4+incompatible	10.4.4+incompatible
github.com	mattermost_mattermost-server	>= 10.5.0+incompatible < 10.5.2+incompatible	10.5.2+incompatible
github.com	mattermost_mattermost-server	>= 9.11.0+incompatible < 9.11.10+incompatible	9.11.10+incompatible
github.com	mattermost_mattermost_server_v8	>= 0 < 8.0.0-20250218121836-2b5275d87136	8.0.0-20250218121836-2b5275d87136
github.com	mattermost_mattermost_server_v8	>= 0 < 8.0.0-20250314142426-c049748b8863	8.0.0-20250314142426-c049748b8863
github.com	mattermost_mattermost_server_v8	>= 10.4.0 < 10.4.4	10.4.4
github.com	mattermost_mattermost_server_v8	>= 10.5.0 < 10.5.2	10.5.2
github.com	mattermost_mattermost_server_v8	>= 9.11.0 < 9.11.10	9.11.10
mattermost	mattermost	10.4.0 – 10.4.3	—
mattermost	mattermost	10.5.0 – 10.5.1	—
mattermost	mattermost	9.11.0 – 9.11.9	—
mattermost	mattermost_server	>= 10.4.0 < 10.4.4	10.4.4
mattermost	mattermost_server	>= 10.5.0 < 10.5.2	10.5.2
mattermost	mattermost_server	>= 9.11.0 < 9.11.10	9.11.10

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CWE-863