CVE-2026-10600
Denial of service via unbounded document content extraction in Mattermost Server
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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
| CWE | CWE-770 |
| Vendor | mattermost |
| Product | mattermost |
| Published | Jul 27, 2026 |
| Last Updated | Jul 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
Mattermost / Mattermost
11.8.0 ≤ 11.8.0 11.7.0 ≤ 11.7.3 11.6.0 ≤ 11.6.5 10.11.0 ≤ 10.11.20
Credits
abderrahimelkahlaoui