CVE-2026-10600

published 2026-07-27

CVE-2026-10600: Mattermost versions 11.8.x <= 11.8.0, 11.7.x <= 11.7.3, 11.6.x <= 11.6.5, 10.11.x <= 10.11.20 fail to bound the time and resource consumption of server-side…

Priority P4 25 medium 4.3 CVSS 3.1

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

Mattermost versions 11.8.x <= 11.8.0, 11.7.x <= 11.7.3, 11.6.x <= 11.6.5, 10.11.x <= 10.11.20 fail to bound the time and resource consumption of server-side document content extraction which allows an authenticated user with file-upload permission to degrade file uploads for all users on the server via repeatedly uploading small documents that are cheap to upload but expensive to extract, saturating the shared extraction worker pool.. Mattermost Advisory ID: MMSA-2026-00694

Affected

8 ranges

Vendor	Product	Version range	Fixed in
mattermost	mattermost	10.11.0 – 10.11.20	—
mattermost	mattermost	11.6.0 – 11.6.5	—
mattermost	mattermost	11.7.0 – 11.7.3	—
mattermost	mattermost	11.8.0 – 11.8.0	—
mattermost	mattermost_server	>= 10.11.0 < 10.11.21	10.11.21
mattermost	mattermost_server	>= 11.6.0 < 11.6.6	11.6.6
mattermost	mattermost_server	>= 11.7.0 < 11.7.4	11.7.4
mattermost	mattermost_server	>= 11.8.0 < 11.8.1	11.8.1

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CWE-770