CVE-2025-41436

published 2025-11-14

CVE-2025-41436: Mattermost versions <11.0 fail to properly enforce the "Allow users to view archived channels" setting which allows regular users to access archived channel…

Priority P4 23 medium 4.3 CVSS 3.1

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

Mattermost versions <11.0 fail to properly enforce the "Allow users to view archived channels" setting which allows regular users to access archived channel content and files via the "Open in Channel" functionality from followed threads

Affected

5 ranges

Vendor	Product	Version range	Fixed in
github.com	mattermost_mattermost-server	>= 0 < 11.0.0-alpha.1+incompatible	11.0.0-alpha.1+incompatible
github.com	mattermost_mattermost-server	>= 0 < 11.0.0-alpha.1	11.0.0-alpha.1
github.com	mattermost_mattermost_server_v8	>= 0 < 8.0.0-20250815165020-c8d66301415d	8.0.0-20250815165020-c8d66301415d
mattermost	mattermost	<= <11.0	—
mattermost	mattermost_server	< 11.0.0	11.0.0

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CWE-863