CVE-2026-75587

3.3 lowEPSS 0.1%

Low (3.3) in mattermost mattermost desktop. EPSS 0.1% chance of exploitation in the next 30 days.

Mattermost Desktop App versions <=6.2 6.2.2.0 fail to redact the pre-auth secret when generating a diagnostics report, which allows a local attacker with access to a user's diagnostics report or log files to obtain the plaintext pre-auth secret configured for a connected server via inspecting the Server Connectivity (Step-3) diagnostics output. Mattermost Advisory ID: MMSA-2026-00716

Severity

CVSS 3.1

3.3 low

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-31)
CWE: CWE-200
Published: 2026-08-17
Modified: 2026-08-19
Record from: the NVD, synced 2026-10-19

Affected

mattermost:mattermost_desktop

References

https://mattermost.com/security-updates

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