Threats Tagged 'cve-2026-9816'
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Threats Tagged 'cve-2026-9816'
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Mattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21, 11.8.x <= 11.8.3 fail to validate BoardMember.Scheme fields server-side on insert and… (CVE-2026-9816)CVE-2026-9816 0 Mattermost versions 11.7.x up to 11.7.6, 10.11.x up to 10.11.21, and 11.8.x up to 11.8.3 contain a vulnerability where the BoardMember.Scheme fields are not properly validated server-side during insert and archive-import operations. This flaw allows a board editor or any non-guest team member to escalate privileges by granting board admin rights to arbitrary users via specific API endpoints. Join the discussion | GCVE Database | 08/18/2026, 00:30:36 UTC Added: 08/18/2026, 00:42:13 UTC |
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