Lucene search
+L

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

🗓️ 17 Aug 2026 22:06:26Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 11 Views

Mattermost Boards plugin lacks role-based authorization on board channel links allowing editors to relink boards to arbitrary channels.

Refs

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

21 Aug 2026 03:47Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.16.5
11