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CVE-2026-10600
4.3 MEDIUM
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): None (N)
- Integrity (I): None (N)
- Availability (A): Low (L)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): None (N)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): Low (L)
Activity log
- Created suggestion
Denial of service via unbounded document content extraction in Mattermost Server
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
References
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MMSA-2026-00694 vendor-advisory
Affected products
Mattermost
- ==11.8.1
- =<11.6.5
- =<11.7.3
- ==11.9.0
- =<10.11.20
- ==11.7.4
- ==11.6.6
- ==10.11.21
- =<11.8.0
Matching in nixpkgs
pkgs.mattermost
Open source platform for secure collaboration across the entire software development lifecycle
pkgs.mattermostLatest
Open source platform for secure collaboration across the entire software development lifecycle
pkgs.mattermost-desktop
Mattermost Desktop client
pkgs.python313Packages.mattermostdriver
Python Mattermost Driver
Package maintainers
-
@ryantm Ryan Mulligan <ryan@ryantm.com>
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@mgdelacroix Miguel de la Cruz <mgdelacroix@gmail.com>
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@numinit Morgan Jones <me+nixpkgs@numin.it>
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@jokogr Ioannis Koutras <ioannis.koutras@gmail.com>
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@yayayayaka Yaya <github@uwu.is>
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@liff Olli Helenius <liff@iki.fi>