CVE-2026-3117 — Instance and webhook GitLab plugin commands were able to be run by non-admin users
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 uni…
Published: 2026-05-18 · CVSS: 6.5 · CVSS 3.1
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
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7