Mattermost versions 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate access controls which allows any authenticated user to download sensitive files via board file download endpoint using UUID enumeration
{ "versions": [ { "introduced": "9.11.0" }, { "fixed": "9.11.17" }, { "introduced": "10.5.0" }, { "fixed": "10.5.9" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-9081.json"