Security Advisory

CVE-2026-4286

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-18 08:07:06
Last updated 2026-05-18 12:41:28
Assigner Mattermost
CVSS score 3.1
State PUBLISHED

Description

Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to check if {{team_id}} was being changed when updating playbooks, allowing users with only {{Manage Playbook Configurations}} permission to change a playbook's team, bypassing manage members restriction via PUT api. Mattermost Advisory ID: MMSA-2025-00552