CVE-2026-7184

published 2026-06-12

CVE-2026-7184: Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15 fail to sanitize the Remote Cluster API response on PATCH operations, which allows…

Priority P3 40 medium 6.5 CVSS 3.1

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

Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15 fail to sanitize the Remote Cluster API response on PATCH operations, which allows authenticated users with the {{manage_secure_connections}} permission to obtain remote cluster authentication tokens via a PATCH request to the remote cluster endpoint.. Mattermost Advisory ID: MMSA-2026-00662

Affected

7 ranges

Vendor	Product	Version range	Fixed in
github.com	mattermost_mattermost-server	>= 10.11.0 < 10.11.16	10.11.16
github.com	mattermost_mattermost-server	>= 11.5.0 < 11.5.5	11.5.5
github.com	mattermost_mattermost-server	>= 11.6.0 < 11.6.1	11.6.1
github.com	mattermost_mattermost_server_v8	>= 8.0.0-20250731163400-5b955468ea1e < 8.0.0-20260428142921-bd8fc9222672	8.0.0-20260428142921-bd8fc9222672
mattermost	mattermost	10.11.0 – 10.11.15	—
mattermost	mattermost	11.5.0 – 11.5.4	—
mattermost	mattermost	11.6.0 – 11.6.1	—

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CWE-201