Mattermost Desktop App versions <=6.0 6.2.0 5.2.13.0 fail to validate help links which allows a malicious Mattermost server to execute arbitrary executables on a user’s system via the user clicking on certain items in the Help menu Mattermost Advisory ID: MMSA-2026-00577
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:LMattermost Desktop
APPMattermost5.13.2 – 5.13.3 (excl.)6.0.0 – 6.0.3 (excl.)
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PATCH AVAILABLE
Vendor update available. Deploy in standard maintenance cycle.
CWE
References
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