CVE-2026-9859 - Mattermost Boards plugin didn’t enforce role-based authorization on board channel link allowing board editors to expose boards to arbitrary channels
Brief
CVE ID : CVE-2026-9859
Published : Aug. 17, 2026, 10:17 p. m.
- 50 minutes ago
Description : Mattermost versions 11.
- x Severity: 6. 5
- MEDIUM
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