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CVE-2026-3117

MEDIUM NVD
CVSS Score
6.5
Severity
MEDIUM
Source
NVD
Published
May 18, 2026
Description

Mattermost Plugins versions <=11.5 11.1.5 10.13.11 11.3.4.0 fail to properly check for permissions when processing commands in the Gitlab plugin which allows normal users to uninstall instances or setup webhook connections via the {{gitlab instance {option}}} or the {{/gitlab webhook {option}}} commands. Mattermost Advisory ID: MMSA-2026-00600

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