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CVE-2026-12284

🗓️ 17 Sep 2026 15:11:52Reported by MendType 
mend
 mend
🔗 www.mend.io👁 8 Views

Malicious Mattermost server can disconnect active calls via desktopAPI.leaveCall IPC.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-12284
17 Sep 202615:11
–cve
cvelist
Cvelist
CVE-2026-12284 Mattermost Desktop App Missing IPC Sender Validation in Calls Leave Handler
17 Sep 202615:11
–cvelist
euvd
EUVD
EUVD-2026-81680
17 Sep 202615:11
–euvd
nvd
NVD
CVE-2026-12284
17 Sep 202616:17
–nvd
ptsecurity
Positive Technologies
PT-2026-94361
17 Sep 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-12284: Origin Validation Error
17 Sep 202600:00
–rapid7
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08 Oct 2026 00:07Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.13.7
CVSS 46.3
EPSS0.00131
8