Mattermost: >> Mattermost Server >> 11.6.1 Security Vulnerabilities
Mattermost versions 11.5.x <= 11.5.1 fail to validate team-level run_create permission against the target team when creating a playbook run which allows an authenticated team member to create runs in teams where they lack permission via specifying a different team ID in the run creation API request. Mattermost Advisory ID: MMSA-2026-00629
CVSS Score
4.3
EPSS Score
0.0
Published
2026-05-21