{"uuid": "ab1097e8-0112-4d32-83cf-358ac7023aa9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-9816", "type": "seen", "source": "https://bsky.app/profile/cyberhub.blog/post/3mtkmqcmd5q2y", "content": "\ud83d\udccc CVE-2026-9816 - Mattermost versions 11.7.x &lt;= 11.7.6, 10.11.x &lt;= 10.11.21, 11.8.x &lt;= 11.8.3 fail to validate BoardMember.Scheme* fields server-side on insert and arch... https://www.cyberhub.blog/cves/CVE-2026-9816", "creation_timestamp": "2026-08-21T01:37:07.508364Z"}