MD
Product
Mattermost Desktop
by Mattermost · last CVE Sep 17, 2026
34
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 2High 4Medium 19Low 9
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2025-13326
3.9
0%
Dec 17
Mattermost Desktop App fails to enable Hardened Runtime when packaged for Mac App Store
Affected: before 6.0.0
CVE-2026-12284
3.7
0%
Sep 17
Mattermost Desktop App Missing IPC Sender Validation in Calls Leave Handler
Affected: 6.2.0 before 6.2.3
CVE-2026-4643
3.5
0%
May 18
Calling window.close() from server-side content causes crash in the Mattermost Desktop App
Affected: through 5.4.13.0; 6.0.0 through 6.0.1; 6.1.0 before 6.2.0
CVE-2026-75587
3.3
0%
Aug 17
Plaintext pre-auth secret exposure via Desktop App diagnostics report
Affected: before 6.2.3
CVE-2025-13321
3.3
0%
Dec 17
Mattermost Desktop App logging sensitive information and fails to clear data on server deletion
Affected: before 6.0.0
CVE-2025-1398
3.3
0%
Mar 17
macOS TCC Bypass via Code Injection
Affected: before 5.11.0
CVE-2024-36287
3.3
0%
Jun 14
Bypass of TCC restrictions on macOS
Affected: through 5.7.0
CVE-2023-5920
3.3
0%
Nov 2
Lack Of Secure Keyboard Entry Protection in MacOS Desktop
Affected: through 5.5.0
CVE-2026-75588
2.6
0%
Sep 17
Mattermost Desktop App plugin popout scheme validation bypass
Affected: 6.2.0 before 6.2.3
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