Mattermost Server 10.11.x < 10.11.22 / 11.7.x < 11.7.7 / 11.8.x < 11.8.4 Multiple Vulnerabilities (MMSA-2026-00685, MMSA-2026-00686, MMSA-2026-00687, MMSA-2026-00691)

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Version 1.3 Aug 29, 2026, 12:30 AM Plugin metadata (Add IAVM Info) Plugin Feed: 202608290030
Version 1.2 Aug 21, 2026, 11:26 PM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:U/RL:OF/RC:C". "CVSSv3 temporal vector" set to "CVSS:3.0/E:U/RL:O/RC:C") Exploit attributes ("Exploit available" set to "False". "Exploitability ease" set to "No known exploits are available") Plugin metadata (Add IAVM Info) Plugin Feed: 202608212326
Version 1.1 Aug 20, 2026, 7:45 PM New Plugin Feed: 202608201945

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