Low severity3.7NVD Advisory· Published Sep 17, 2026· Updated Oct 13, 2026
CVE-2026-12284
CVE-2026-12284
Description
Mattermost Desktop App versions <=6.2 6.2.2.0 fails to validate the IPC sender in the leaveCall handler which allows a malicious or compromised Mattermost server (or a user with script access to a connected server view) to disconnect an active call belonging to a different connected server via the desktopAPI.leaveCall IPC message. Mattermost Advisory ID: MMSA-2026-00699
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3<=6.2.2.0+ 1 more
- (no CPE)range: <=6.2.2.0
- cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:*range: >=6.2.0,<6.2.3
- Range: <=6.2.2.0
Patches
Vulnerability mechanics
References
1- mattermost.com/security-updatesnvdVendor Advisory
News mentions
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