SUSE CVE-2026-26304

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

CVE-2026-26304

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

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization via the playbook run API when the runcreate permission is not verified for an empty playbookId. An attacker can initiate unauthorized playbook runs by sending crafted API requests. Remediation Upgrade...

GHSA-4PMX-622H-X359 Mattermost fails to verify run_create permission for empty playbookId

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

EUVD-2026-12512

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

CVE-2026-26304

Mattermost vulnerability CVE-2026-26304 affects Mattermost server versions 11.3.x (up to 11.3.0) and 11.2.x (up to 11.2.2). The issue is a permission check bypass in the playbook run creation path: run_create permission for an empty playbookId is not verified, enabling team members to create unau...