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CVE-2026-6343

MEDIUM CVSS: 4.3 Published: 2026-05-18 Modified: 2026-06-17

Description

Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to check public/private permissions which allows members without these permissions to access public playbooks via /get.. Mattermost Advisory ID: MMSA-2026-00591

Affected Platforms

Mattermost Mattermost Server

Weakness Type

CWE-863

References