CVE-2026-26304

Publication date

2026-03-16 19:53:21

Family

Mattermost

State

PUBLISHED

Description

Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2 fail to verify run_create permission for empty playbookId, which allows team members to create unauthorized runs via the playbook run API. Mattermost Advisory ID: MMSA-2025-00542