PT-2026-76874 · Mattermost · Mattermost Desktop App

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CVE-2026-75587

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Published

2026-08-17

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Updated

2026-08-19

CVSS v3.1

3.6

Low

VectorAV:L/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Name of the Vulnerable Software and Affected Versions Mattermost Desktop App versions prior to 6.2.2.0
Description The application fails to redact the pre-auth secret during the generation of a diagnostics report. A local attacker with access to the user's log files or diagnostics report can obtain the plaintext pre-auth secret for a connected server by inspecting the Server Connectivity (Step-3) diagnostics output.
Recommendations Update Mattermost Desktop App to version 6.2.2.0 or later.

Exploit

Fix

Information Disclosure

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Weakness Enumeration

Related Identifiers

CVE-2026-75587

Affected Products

Mattermost Desktop App