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GO-2026-4495 Mattermost doesn't properly validate channel membership at the time of data retrieval in github.com/mattermost/mattermost-server

🗓️ 23 Feb 2026 18:23:12Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 3 Views

GO-2026-4495: Mattermost server does not properly validate channel membership during data retrieval.

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23 Feb 2026 19:41Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.13.1
EPSS0.00199
SSVC
3